February weather forecastSaint Helena, CA
February
Weather in February
February, the last month of the winter in Saint Helena, is also a moderate month, with an average temperature ranging between min 39.7°F (4.3°C) and max 59.2°F (15.1°C).Temperature
The average high-temperature during February registers at a still moderate 59.2°F (15.1°C), maintaining a close resemblance to the previous month. Nightly temperatures drop to an average low of 39.7°F (4.3°C) in February.Humidity
In Saint Helena, California, the average relative humidity in February is 74%.Rainfall
The month with the most rainfall is February, when the rain falls for 9.3 days and typically aggregates up to 3.7" (94mm) of precipitation.Snowfall
In Saint Helena, snow does not fall in January, February, April through December.Daylight
In February, the average length of the day is 10h and 47min.On the first day of February, sunrise is at 7:15 am and sunset at 5:31 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:02 pm PST.
Sunshine
The average sunshine in February is 5.6h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 3 in February suggests the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in February
Saint Helena, CA
- Average high temperature in February: 59.2°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in February: 39.7°F
The month with the highest average low temperature is September (54.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).
Average pressure in February
Saint Helena, CA
- Average pressure in February: 30.07"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in February
Saint Helena, CA
- Average wind speed in February: 5.2mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in February
Saint Helena, CA
- Average humidity in February: 74%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (53%).
Average rainfall in February
Saint Helena, CA
- Average rainfall in February: 3.7"
The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is July (0").
Average rainfall days in February
Saint Helena, CA
- Average rainfall days in February: 9.3 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (0.3 days).
Average snowfall in February
Saint Helena, CA
- Average snowfall in February: 0"
The month with the highest snowfall is March (0.04").
The months with the least snowfall are January, February, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in February
Saint Helena, CA
- Average snowfall days in February: 0 days
The month with the highest number of snowfall days is March (0.2 days).
The months with the least snowfall days are January, February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in February /
Average sunshine in February
Saint Helena, CA
- Average daylight in February: 10h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in February: 5h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in February
Saint Helena, CA
- Average sunshine days in February: 18.2 days
The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (15.9 days).
Average UV index in February
Saint Helena, CA
- Average UV index in February: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in February
Saint Helena, CA
- Average cloud cover in February: 40
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in February
Saint Helena, CA
- Average visibility in February: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
