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If you recently moved to Davis, it is important to remember that weather is relative: everybody has different comfort levels. Davis has what is called a [wikipedia]Mediterranean climate, which exists in few places other than near the Mediterranean Sea. This means that we experience cool, wet winters and hot, dry summers. The heat drives people nuts in the summer and the rain and fog drives them bananas in the winter. That's why California's full of fruits and nuts. Spring and fall are great, though.

  1. Current Weather and Forecasts
  2. Seasonal Weather
    1. Summer
    2. Fall
    3. Winter
    4. Spring
    5. Average Temps (Fahrenheit)
  3. Special Weather (and Weather Effects)

Current Weather and Forecasts

Make sure you check the time to make sure the data is current.

Seasonal Weather

Summer

Davis summers are hot. High temperatures average in the low 90's, with many days below and many days above that. On particularly hot days the temperature reaches into the 100s and this can last for 3 - 4 days; the record number of days in a row over 100F is 8. In an average summer there are 15 - 20 days over 100 total through the summer. Hot spells occur when a high pressure ridge builds over the Sacramento Valley or the Great Basin and remains in place for a couple of days. Typically after 2 - 3 days a low pressure front pushes in from the ocean and the delta breeze returns, and high temperatures drop into the mid- to upper 80's. Humidity is very low when it is hot, usually in the 15 - 30% range. Night temperatures in the summer are usually in the upper 50's.

We almost never get summer thunderstorms and there is virtually no rain at all during the summer. The nicest thing about summer in Davis is the night time. The city's light ordinance is finally appreciated, as people can now enjoy the night sky. It's still warm out, pleasant for hanging out or a late barbeque, enjoying cool drinks, even outdoor activities (glow in the dark frisbees anyone?). The average low temperature for a July night is 56°F, typically past 3 or 4am. Although sleeping at night can be comfortable despite a very hot day, sometimes night temperatures in July are still in the low 70's at 8 or 9, even (rarely) up to 10pm.
skyline.jpgA nice example of Davis' summer climate

outskirts.JPGWhat Davis is like during the summer in the less irrigated parts

Fall

Four out of five farmers agree, fall is the best season of the year. However, early fall in Davis is only slightly cooler than summer. Notable concomitants of the season are trees that sport leaves of brilliant red, orange, and yellow. Pumpkins pop up in the usual locations as well; at the outskirts of the city, at the Farmers Market, and of course, on people's doorsteps. This is the best time of year to arrive in Davis as a student because the weather brings everyone outdoors; student organizations are recruiting left and right; and there are lots of freshmen and transfers who are just as bewildered and disoriented as you are!

red_leaves.jpgMany of the trees in Davis put on a colorful show during fall.

pumpkins.jpgA pumpkin patch on the west edge of town.

Winter

badwatering.jpgBad winter watering habits in a local park

Davis winters can be quite chilly but does not often go below freezing. The average high in December is about 54°F and the average low is about 36°F (source: [WWW]Weather.com). There is often a lot of fog which warms things up a little, but winter is basically the period that it rains. It can also get very windy and, combined with the rain, that can be difficult for cyclists. If the trees haven't already lost their leaves during our brief fall season, they lose them now.
Major freezes occurred in December 1990, when temperatures dropped into the mid-teens (F), December 1998, and January 2007. These killed subtropical plants and damaged the citrus crop throughout Northern California.

When [WWW]El Niño is in effect, there is typically more rainfall and [WWW]snowfall due to the warming of the Pacific Ocean. The 1982 El Niño brought us one of the snowiest and wettest winters on record for the state.

tree.jpgBeware of the wind and rain...

car.jpg...for they may cause trees to fall on your car.

Spring

Spring is perhaps the nicest time of year, with occasional rain and a lot of Delta Breeze to keep it from getting too hot. The plants are very green, and The Quad is somewhat less muddy. You'll find many parts of Davis to explode with spring flowers. Not surprisingly, those with allergy problems will begin to suffer with the coming of this season, as the central valley of California is infamous for being a death pit of allergies.

Average Temps (Fahrenheit)

 Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec 
 High  53 60 65 72 80 88 93 92 88 79 64 54
 Low  37 40 42 45 50 55 56 55 53 48 41 36

(source: [WWW]Weather.com)

Special Weather (and Weather Effects)

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2008-01-04 08:25:29   This has been the craziest Davis winter storm I can remember! This morning when I was going to work I thought there was NO WAY I was going to walk from my usual spot thatis a ten minute walk to GBSF.

So, I decided to park as close as possible to my building in the lot and make a run for it. This was after the parking permit machine would not take my cash; it would recognize it because it was so wet. When I got the wind knocked me back against the car.

When I made a break for it I was completely soaked by the time I ran the 50 feet to my building. The building is like a wind tunnel and as I was running, it felt like I was on a really wet and windy treadmill. My hood blew off my coffee was half gone by the time I made it inside. I also called TAPS to let them know why I did not have a permit. They were really nice and said they would get alot of calls like mine and if I was cited, to bring my citation into TAPS this afternoon and pay my $6 then.


2008-12-16 16:36:32   Climate and Weather are two DIFFERENT things. Weather is short term and Climate is long term. This article should be called "Climate." —BryceH


2010-07-18 15:53:05   I recently searched the Western Regional Climate Center's data for Davis [WWW]http://www.wrcc.dri.edu/cgi-bin/cliRECt.pl?cadavi and learned that the hottest day on record there was July 17, 1925. It reached 116º, which is pretty hot. —gshenaut

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