UPDATE 5th March 2025: A moderate atmospheric river storm will start to cross the San Jacinto mountains this afternoon, continuing in phases into the early hours of Friday 7th. Significant snowfall, accompanied by strong winds and severe cold, is expected in the high country, with inches of snow as low as 4000-5000 ft elevation. Further significant storms are predicted overnight on 10th-11th and again on 12th-13th March.
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This is a brief summary of trail conditions following a minor snow storm overnight on Sunday 2nd March. Although nominally the eighth storm of this winter, seven of those, like this most recent storm, have been minor and total snowfall at San Jacinto Peak since September 2024 has been a paltry 29 inches.
This summary is thankfully brief because this is expected to be the first of four storms in rapid succession – with the next three on 5th-6th, 10th-11th, and 13th-14th March – all of which are currently forecast to produce significant precipitation.
I broke trail through light snow on the morning of Monday 3rd March via Devil’s Slide Trail, a short section of the PCT, and the Wellman, Peak, and East Ridge trails, to San Jacinto Peak. At San Jacinto Peak in late morning I recorded a short video report (linked here), and also took a video of the beautifully sunny, but windy, conditions on top (linked here).
This report includes a brief dedicated Pacific Crest Trail section (below, between Weather and Trail Conditions) for the benefit of northbound PCT hikers. Additional information elsewhere in the report is however also of use to PCT hikers.
Trails below about 6600 ft are already clearing of snow, with snow on trails up to 9000 ft on the most sun-exposed slopes already becoming thin and patchy (details under Trail Conditions below).
Details of recommended traction devices are given below under Trail Conditions. In summary, carrying spikes is recommended everywhere above about 6500 ft. Crampons are potentially useful everywhere in the high country above about 9000 ft for the next couple of days as the light powder is not adhering well to the pre-existing icy snow below. Crampons are required on the north side of Tahquitz Peak (details below). Snowshoes can be useful above about 9000 ft elevation, and will become invaluable after 5th March.
For the foreseeable, hikers must be prepared for genuine winter conditions in the high country, with temperatures near or well below freezing, and potentially far below freezing when considering wind chill effects, in addition to strong winds and heavily drifting snow (see below for my recent weather observations from San Jacinto Peak).
Details of snow depths measured at a few sample locations on the trail system are given at the foot of this posting. Note however that snow depth itself is very rarely indicative of the difficulty (or ease) of hiking a particular track or trail. For example a firm, well-compacted track across deeper snow is often much easier hiking than a poorly defined track across just a few inches depth of angled icy snow.
The USFS gate at Humber Park is open, but is expected to close on 5th March. Even when closed there are nine legal parking spaces immediately below the gate. South Ridge Road currently remains open and is readily passable, albeit somewhat lumpy in places. Dark Canyon Road (4S02), the access road to the Seven Pines trailhead, is closed due to seasonal conditions.
Survey hikes by the Trail Report every single day throughout the year in the San Jacinto mountains include varied routes to the high peaks including San Jacinto Peak typically 2-3 times per week (even more frequently during storms), Tahquitz Peak and area 1-3 times per week, plus a wide variety of other trails on intervening days.

WEATHER
March may be far more interesting meteorologically than the preceding several months. Within hours of the passage of the light snow storm on 3rd, temperatures were already warming rapidly, with melting visible on bushes and rocks at 10,000 ft by noon that day. This will continue on Tuesday 4th.
A moderate (or even major) storm is forecast for 5th-6th March. Two precipitation phases are expected, on the afternoon and evening of Wednesday 5th, and then again on the afternoon and evening of Thursday 6th. The former will be warmer, with predominantly rain expected at mid elevations (possibly an inch in Idyllwild) before turning to snow that night. At mid elevations it may snow for much of 6th, with 3-5 inches possible.
Snow is expected throughout the higher elevations from Wednesday evening to Friday morning, with the heaviest accumulations on Wednesday and Thursday nights. Total snowfall forecasts for the high country have varied greatly from 10-25 inches, with 12-20 inches now most likely above 10,000 ft.
Temperatures may warm quickly after passage of that storm, and will be above seasonal yet again on 8th-9th, before an extended period of unstable weather is forecast starting Monday 10th March. Details remain uncertain at this time, but light or moderate precipitation is possible daily from 10th to 14th March, in the high country perhaps most likely at the beginning and end of that period.
At San Jacinto Peak (10,810ft/3295m) on Monday 3rd March 2025 at 1025 the air temperature was 11.9°F (-11°C), with a windchill temperature of -13.7°F (-25°C), 69% relative humidity, and a wild WNW wind sustained at 18 mph gusting to 30.0 mph.
At the Peak on Friday 28th February 2025 at 0800 the air temperature was 27.8°F (-2°C), with a windchill temperature of 11.3°F (-13°C), 41% relative humidity, and a bitter SE wind sustained at 17 mph gusting to 23.9 mph.

PACIFIC CREST TRAIL
The trail was largely covered in thin snow from Miles 151 (Highway 74) to about Mile 175 as of 3rd March. However this was already melting rapidly that afternoon. Some thin patchy icy snow remains on north-facing and sheltered slopes from February. A patchy 1-2 inches of snow on the north-east side of Apache Peak (Miles 169.5) poses no significant problems. Treefall hazards are a problem on parts of this section but none are insurmountable, as described in more detail below.
Snow cover is continuous from Miles 175 (Red Tahquitz) to 177.7 (Chinquapin Flat), with no boot track at this time through very limited consequential terrain. Many hikers may find spikes useful on this section.
PCT hikers should not attempt to use South Ridge Trail from the PCT at Chinquapin Flat (roughly Mile 177.7) to Idyllwild via Tahquitz Peak, even though this looks temptingly simple on apps and maps. This section of steeply angled (and notoriously treacherous) ice slopes will become especially problematic after further snowfall on 5th March.
Snow cover is thin and starting to become patchy and averages 90% between Miles 177.7 to Saddle Junction (about Mile 179). The south-facing slope of Miles 179-180 is already starting to clear, but from Mile 180 (elevation 8900 ft) to about Mile 181 just past Annie’s Junction snow cover is continuous. Miles 181-183 are sun-exposed and will briefly clear of snow on 4th March, and snow cover is then becomes continuous from Mile 183.5. Spikes can be useful on the snowy parts of this section, but are not required at this time for hikers experienced with snow travel.
There is currently no boot track through moderate snow cover on the PCT along Fuller Ridge (Miles 185.5-191). At this time continuing north on Fuller Ridge requires the skills and comfort level to hike on angled terrain with some moderate exposure, and spikes are recommended. After 5th March, taking the Black Mountain Road alternate will probably be recommended for the foreseeable future, pending thorough surveys.
In recent years a myth has periodically circulated on PCT social media that going up and over San Jacinto Peak somehow avoids Fuller Ridge. This is erroneous and potentially dangerous. Whether you remain on the PCT northbound (going around at lower elevation via Strawberry Junction, Mile 183) or leave the PCT at Annie’s Junction (Mile 180.8) to go up to San Jacinto Peak and then down the west side to reconnect to the PCT at about Mile 185.5, you still have to hike Fuller Ridge (Miles 185.5-190.5). It is possible to do the former route more safely by leaving the PCT at Strawberry Junction and descending Deer Springs Trail, which is largely clear of snow below Strawberry Junction, back into Idyllwild.
A well established alternate from Idyllwild – avoiding Fuller Ridge – is to connect back to the PCT at about Mile 191 using Black Mountain Road. Black Mountain Road is clear of snow for the lower five miles, and then has increasingly patchy 20% snow cover for the upper three miles to the PCT but following the road through the snow patches is obvious. Mile 192 northward to Interstate 10 is functionally clear of snow.
Although the situation improved somewhat in 2024, treefall hazards remain a significant problem along parts of the Pacific Crest Trail, most notably between Antsell Rock and South Peak. Some 56 trees are down across the trail between PCT Miles 170.5-174, with 37 of these, including several serious obstructions that make for slow-going, between Miles 172.5-174 (around and immediately south of South Peak). A further nine smaller obstructions are down from Miles 168.5-170.5 (Spitler Peak Trail to Zen Center Trail). Significant sections of Miles 168.5-175 are also badly overgrown with brush and are in urgent need of major trimming work (surveyed February 2025).
PCT hikers are asked to respect that overnight stays are not permitted at or near San Jacinto Peak, including in the historic shelter, to minimize impacts to a sensitive subalpine environment. Officially Mt. San Jacinto State Park permits overnight stays only in established campgrounds (Little Round Valley and Strawberry Junction are good options for thru-hikers).

While all time and labor is volunteered, the San Jacinto Trail Report uses small private donations to help cover operating costs. Your contribution keeps the Report available to all, free from advertising or paywalls, and independent from agencies. If you have found this Report useful, please consider using this link to the Donate page. Thank you very much for your support.

TRAIL CONDITIONS
Trails are covered with thin patchy snow above about 6000 ft, and light-to-moderate depth snow above about 8500 ft. Melting is rapidly underway at all elevations, and clear patches are already appearing as high as 8500 ft in places. This is expected to change dramatically from 5th March onward (see Weather above).
For details of trail conditions, including specifics of downed trees, prior to this latest minor snow storm, see the previous Report (linked here).
Everywhere above about 6500 ft carrying spikes is recommended as established trails become consolidated by hiker traffic and as they undergo freeze-thaw cycles. As always, spikes tend to be especially useful for descending, even when they are not necessarily required for ascending.
Devil’s Slide Trail has a well-traveled track through very thin snow to Saddle Junction.
There is a moderately traveled track south on the PCT from Saddle Junction (Mile 179) to about Mile 177 (Chinquapin Flat).
From Saddle Junction northbound a posthole track continues to San Jacinto Peak via Annie’s Junction (PCT Mile 180.8) and Wellman Divide, via the Wellman, Peak, and East Ridge trails. Due to strong winds, the tracks may be obscure on some exposed slopes.
There is now a continuous posthole track on the Peak Trail. However the track turns up to the Peak near Miller Peak via the East Ridge Trail route. These tracks may well have been obscured by spindrift snow by the afternoon of 3rd March.
Tahquitz Peak trail from Chinquapin Flat/PCT Mile 177 has a challenging and very lightly traveled posthole track to follow through the steeply angled icy snow. These slopes comprise some of the most consequential terrain in winter in these mountains, and this route is not recommended for most hikers at this time. Spikes (or preferably crampons) are strongly recommended, with at least hiking poles or ideally an ice axe (and, critically, adequate knowledge of how to use it).
SNOW DEPTHS
Measured on 3rd March 2025. The first number gives total average depth. Due to strong winds accompanying the most recent storm system there was extensive drifting and accumulation in the trails. The number in parentheses indicates the new snowfall in the storm on 2nd-3rd March. Altitudes and PCT Miles are approximate.
San Jacinto Peak (10810 ft): 10 inches (4 inches new snow on 3rd March)
Wellman Divide (9700 ft): 6 inches (3 inches new snow on 3rd March)
Annie’s Junction/approx. PCT Mile 180.8 (9020 ft): 12 inches (3 inches new snow on 3rd March)
Saddle Junction/approx. PCT Mile 179 (8070 ft): 2-3 inches (2 inches new snow on 3rd March)
Devil’s Slide Trail at Humber Park (6550 ft): 0-1 inches (1 inch new snow on 3rd March, already largely melted by that afternoon)
Idyllwild (at 5550 ft): 0 inches (0.5 inch new snow on 3rd March, already largely melted)
While all time and labor is volunteered, the San Jacinto Trail Report uses small private donations to help cover operating costs. Your contribution keeps the Report available to all, free from advertising or paywalls, and independent from agencies. If you have found this Report useful, please consider using this link to the Donate page. Thank you very much for your support.
















































































































