Eastern valley, foothills, & west slope

Includes, but not limited to: Sacramento, Fair Oaks, Orangevale, Gold River, Rancho Cordova, Folsom, El Dorado Hills, Roseville, Rocklin, Granite Bay, Loomis, Newcastle, Auburn, Grass Valley, Foresthill, Meadow Vista, Colfax, Cool, Coloma, Placerville, Cameron Park, Elk Grove, Plymouth, Jackson, Ione, Valley Springs, San Andreas, Sonora, Farmington, Yuba City, Oroville, Chico, & Paradise. Cities & towns nearby (within 10 miles) of each aforementioned location can be assumed/included in this forecast.

Eastern valley, foothills, & west slope

Includes, but not limited to: Sacramento, Fair Oaks, Orangevale, Gold River, Rancho Cordova, Folsom, El Dorado Hills, Roseville, Rocklin, Granite Bay, Loomis, Newcastle, Auburn, Grass Valley, Foresthill, Meadow Vista, Colfax, Cool, Coloma, Placerville, Cameron Park, Elk Grove, Plymouth, Jackson, Ione, Valley Springs, San Andreas, Sonora, Farmington, Yuba City, Oroville, Chico, & Paradise. Cities & towns nearby (within 10 miles) of each aforementioned location can be assumed/included in this forecast.

Monday, Nov 20

 High temperatures: 59 – 67 °F

Tuesday, Nov 21

 High temperatures: 59 – 67 °F

Wednesday, Nov 22

 High temperatures: 60 – 66 °F

Thursday, Nov 23

 High temperatures: 61 – 69 °F

Friday, Nov 24

 High temperatures: 58 – 63 °F

Saturday, Nov 25

 High temperatures: 57 – 62 °F

Sunday, Nov 26

 High temperatures: 58 – 63 °F

Forecast details (2/26/24)

After a few days of temperatures warm enough to bring quite a few rattlesnakes to the surface at their dens each afternoon, a trend towards cooler and more unsettled weather will close the month of February out and continue as our greeting to the month of March. For the most part between Feb 27th through at least March 7th or so, temperatures and conditions will be too cool for a whole lot of surface activity in rattlesnake populations. It’s possible there could be a day or two in this period where a break in unsettled weather may just be enough to allow temperatures in the valley to sneak into the low or even mid-60s, but these temperatures are barely marginally supportive of a snake or two slithering up to the surface for sun before retreating back underground.

Long range modeling (which is of course not always very accurate, but worth looking at to get a general idea of potential broad patterns 2 – 4 weeks out) suggests March may feature more troughing than ridging in the west, meaning a tendency towards cooler than normal temperatures with precipitation more likely than not. All said, snakes may not be getting one of their early awakenings as seen in prior spring seasons, with this being the second March in a row to feature stormier weather instead of abnormally warm temperatures (March 2022 was the most recent early awakening) and snakes waking up. Anyhow, lets enjoy the cool and unsettled weather while we can.

Date & time last updated: Monday, 2/26/2024, at 2:20 AM

Next update: 3/5/2024 – 3/9/2024

How the forecast works

Snake activity is heavily driven by weather conditions, not just large-scale seasonal changes such as the shift from Winter to Spring or Summer to Fall. While time of year has an impact on snake activity, it’s primarily driven by various meteorological factors including, but not limited to, surface/air temperature, cloud cover, humidity, and more.

Placer Snake Removal’s weekly snake activity conditions forecast combines large-scale seasonal trends, in addition to & perhaps more importantly, daily weather conditions. The forecast breaks the day up into 4 pieces: morning, afternoon, evening, and overnight. Each day chunk includes the expected quality level for rattlesnakes to be active. A conditions forecast of “Low” means that the conditions are not expected to be particularly ideal for rattlesnakes to be active for long periods of time at the surface. A conditions forecast of “High” means forecast conditions are likely to be very supportive of rattlesnake activity at the surface.

The forecast for each week is created the Sunday night prior.

Do not rely on information from these forecasts for personal safety & always practice venomous snake awareness/safety no matter temperature or weather.

Forecast key & description

Low – conditions not ideal for surface activity.

Low medium – conditions may support small amounts of activity.

Medium – conditions supportive of some activity, perhaps short-range travel.

Mediumhigh – conditions supportive of activity, including travel.

High – conditions very supportive & comfortable for all forms of activity.

Forecast Zone Boundaries