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Northern California Wine Country Vacation Rentals  A California corporation owned by a licensed California real estate broker
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  • Weather
    Misty Russian River Photo by Barbara Bourne    

    Average Guerneville Temperatures

    Current Guerneville Weather

    Guerneville 10-day Forecast

    Santa Rosa* 7-Day Forecast

    FLOOD INFO


         The Russian River area enjoys an agreeable California coastal climate, comparable to the Mediterranean in character.  We have a dry season (roughly May to October) and a rainy season (roughly November to April).  There's no snow and no intense heat; it rarely gets hotter than the low 90s.

         By comparison, Russian River summers are warmer than San Francisco summers, perfect for lounging on the beach and wandering through the redwoods.  We have a real autumn, complete with spectacular falling leaves and cooler temperatures.  Because summer is our dry season, the rains of late fall also bring back the green hills.  Russian River winters are colder than San Francisco winters, making the time-honored tradition of building a fire a real pleasure (and sometimes a necessity!).  After the rains and occasional frost of winter, spring is a delightful mix of warmer temperatures and blooming California wildflowers.  Rapid temperature change is common tothis area, so the locals often dress in layers.

    Temperatures | top

         Spring: Daytime temperatures often range from an average of 41.2 degrees F to an average of 73.3 degrees F.  May is frequently very warm with temperatures into the 90s.

         Summer: In the summer, daytime temperatures usually range from an average of 52 degrees F (on the cooler, foggier mornings) to an average of 89 degrees F.  We do have some stretches of hotter weather, up into the high 90s and even a few days in the low 100s.  When describing our summer weather, we often say, “It’s hot enough to swim during the day, and cool enough to hot tub at night.”

         Autumn: Daytime temperatures usually range from an average of 41 degrees F to an average of 83 degrees F.  September is often warm, with temperatures into the 90s, but by October it’s usually cooled down.

         Winter: Daytime temperatures usually range from an average of 38 degrees F to an average of 60 degrees F.  Sunny days often see higher temperatures, and we do sometimes dip below freezing at night (and wake up to a glittering frost).




         Temperature Links:

         *While Santa Rosa is a ½ hour east of Guerneville, this forecast is useful as a predictor of rain in the Russian River area.  It is slightly more likely to rain here than in Santa Rosa.  In the summer, the forecast can be useful to determine general temperatures for the area.  However, there are many micro climates in the hills and valleys of Sonoma County, and the Russian River area tends to be a bit cooler than Santa Rosa.

    Rain | top

         Most rain falls in the winter months, January through March.  There is usually less rain in November and December.  Rainfall averages about 30 to 70 inches per year depending upon your location.  This chart offers complete information on Guerneville rainfall over the last 10 years:

    Guerneville Rainfall - inches
    Month 90-91 91-92 92-93 93-94 94-95 95-96 96-97 97-98 98-99 99-00 Avg.
    July     1.3         1.7     0.3
    August                     0.0
    September               0.7 0.1 0.2 0.1
    October 1.6 2.6 5.6 2.6 1.4   1.3 2.9 1.6 2.1 2.2
    November 2.0 3.9 1.5 3.7 12.0 0.8 8.7 14.2 13.9 9.5 7.0
    December 2.2 5.6 17.5 8.8 7.7 16.9 21.9 5.3 3.8 1.4 9.1
    January   6.1 21.0 6.2 33.6 14.2 20.4 25.9 10.3 13.3 15.1
    February 6.8 16.3 11.4 9.9 0.8 15.3 0.8 27.5 19.0 21.0 12.9
    March 25.0 6.6 4.2 0.4 25.0 3.7 3.7 6.9 8.1 3.7 8.7
    April   3.0 4.3 3.2 3.3 3.3 2.4 3.5 3.8 4.5 3.1
    May     3.9 1.3 5.2 4.4 0.8 8.4 0.1 2.3 2.6
    June 0.7 0.3 1.9   1.0   0.8     0.2 0.5
    Total 38.3 44.4 72.6 36.1 90.0 58.6 60.8 97.0 60.7 58.2 61.7


    Flooding | top

         Floods do sometimes happen here in the winter, but major floods are rare. Minor flooding is more common, but does not impact any of our vacation homes or access to the area. Major floods occurred in 1964, 1986, and 1995, with a moderate flood in 1997 and most recently New Year's Eve, 2005. If flood warnings are posted within 3 days of a booking, we allow a full refund, without cancellation fee.

    Flood Links:


    For information, contact us at: info@RRGetaways.com
    Updated:  Friday, July 03, 2009 1:49:52 PM
    Design: Working Web Design
    Photos © Barbara Bourne, Big Bottom Photos