I think it's important to know the weather in Yosemite National Park and the current time. Here is information of current conditions as well as what to expect seasonally.
Below is also how I've seen the Yosemite park weather for each month of the year. The summer months are pretty consistent here but Yosemite weather can really fluctuate the rest of the year. At the bottom of this page I have provided a phone number and website link for current Yosemite road conditions.
"There is no such thing as bad weather, only inappropriate clothing." Rannulph Fiennes
For every 1,000 feet in rise in elevation, the temperature drops roughly 3 degrees. I tell you this so that you can think ahead and be prepared for your visit to Yosemite. Yosemite Valley has an elevation of 4,000 feet. But Tioga Pass (upper Yosemite has an elevation of 10,000 feet. And there are hiking trails all the way in between :) Be prepared for changes in weather in Yosemite National Park year around.
Below Is My Yosemite Guide To The Four Seasons Of Yosemite
Spring here is March, April and May. Conditions and temperatures can easily change in the spring. Unexpected storms bring wind and rain. The waterfalls flow nicely from March-June. The park is typically not crowded, unless it's a holiday.
March Average Temperature is 32 to 60 degrees.
April Average Temperature is 35 to 66 degrees.
May Average Temperature is 43 to 73 degrees.
Dogwood trees are in bloom in the Spring
Summer here is June, July and August. Days and nights are pretty consistent in the the summer. June through September is a very nice time to be in the park. Weather in Yosemite National Park during these months the temperature is usually 75-90 degrees with low humidity. Beware that the park is very crowed in the summer months.
June Average Temperature: 48 to 82 degrees.
July Average Temperature is 55 to 90 degrees.
August Average Temperature is 53 to 90 degrees.
Fall comes in September, October, November in Yosemite. The fall months bring the cool weather, rain and wind. Winter storms can come early and Yosemite has seen snow in September, October and November. So carry chains if you're driving.
September Average Temperature is 47 to 87 degrees.
October Average Temperature is 39 to 75 degrees.
November Average Temperature is 31 to 59 degrees.
Tioga Road in the fall going into Yosemite
Photo courtesy of Josh Kellogg
December, January and February are winter months in Yosemite National Park. Storms come and go with no warning. Always carry chains in your car if you are coming here in the winter. The park is not crowded with visitors in the fall and winter months. Upper Yosemite's Tuolumne Meadows really shows the Yosemite autumn colors.
December Average Temperature is 26 to 48 degrees.
January Average Temperature is 26 to 50 degrees.
February Average Temperature is 28 to 56 degrees.
For up to date Yosemite road conditions you may call (209) 372-0200 or 1-800-427-7623.
To check Yosemite road conditions through California Department Of Transportation (CALTRANS) you may just click here. When you see the text box enter in the Highway you are traveling on: 41, 120 or Highway 140.
Yosemite National Park address for GPS: The coordinates for your gps unit for Yosemite are:
W 119° 34.76
If you find your GPS does not match up with road signs when you are in Yosemite, follow the road signs. I often find GPS directions wrong in Yosemite. You can also put in "Yosemite Valley" or "Tuloumne Meadows" or "Wawona" for directions.
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