Climate and monthly weather forecastWhitethorn, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another fresh winter month in Whitethorn, California, with an average temperature ranging between min 44.8°F (7.1°C) and max 54.3°F (12.4°C). January's onset sees an average high-temperature of a still fresh 54.3°F (12.4°C), exhibiting a slight fluctuation from the previous month. Weather in January »Weather in February
The last month of the winter, February, is another cool month in Whitethorn, California, with an average temperature varying between 43.5°F (6.4°C) and 54.1°F (12.3°C). At the start of February, Whitethorn's average high-temperature reaches a still cool 54.1°F (12.3°C), subtly different from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Whitethorn, is still a cool month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 54.9°F (12.7°C). The arrival of March coincides with an average high-temperature of a still cool 54.9°F (12.7°C), indicating a minimal shift from February's 54.1°F (12.3°C). Weather in March »Weather in April
April in Whitethorn, California, is a mild spring month, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 57.2°F (14°C). With the arrival of April, Whitethorn's average high-temperature registers at a mild 57.2°F (14°C), indicating a subtle variation from the previous month. Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Whitethorn, California, with an average temperature fluctuating between 61°F (16.1°C) and 48.4°F (9.1°C). With the start of May, Whitethorn measures an average high-temperature of a still refreshing 61°F (16.1°C), not significantly differing from April's 57.2°F (14°C). Weather in May »Weather in June
The first month of the summer, June, is still a comfortable month in Whitethorn, California, with an average temperature varying between 66.6°F (19.2°C) and 51.8°F (11°C). Whitethorn experiences a minor temperature shift with the start of June, with average high-temperatures moving from 61°F (16.1°C) in May to a still refreshing 66.6°F (19.2°C). Weather in June »Weather in July
July is a pleasant summer month in Whitethorn, California, with an average temperature varying between 69.4°F (20.8°C) and 54.3°F (12.4°C). July observes an average high-temperature of a pleasant 69.4°F (20.8°C), marking an insignificant difference from June's 66.6°F (19.2°C). Weather in July »Weather in August
August, the last month of the summer in Whitethorn, is another pleasant month, with an average temperature ranging between max 69.4°F (20.8°C) and min 54.3°F (12.4°C). Whitethorn experiences a subtle adjustment in high-temperatures to a still agreeable 69.4°F (20.8°C) with the onset of August, maintaining near parity with July's pleasant 69.4°F (20.8°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Whitethorn, California, with an average temperature varying between 54.3°F (12.4°C) and 69.8°F (21°C). The month of September, characterized by an average high of 69.8°F (21°C) and a low of 54.3°F (12.4°C), is recognized as the warmest. Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Whitethorn, California, with an average temperature varying between 51.3°F (10.7°C) and 63.9°F (17.7°C). A mild drop in Whitethorn's average high-temperature is observed in October, transitioning from a pleasant 69.8°F (21°C) in September to an enjoyable 63.9°F (17.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Whitethorn, California, with an average temperature ranging between max 57.6°F (14.2°C) and min 47.1°F (8.4°C). The arrival of November corresponds with a light shift in temperature, down from a comfortable 63.9°F (17.7°C) in October to a still refreshing 57.6°F (14.2°C). Weather in November »Weather in December
December, the first month of the winter in Whitethorn, is still a cool month, with an average temperature varying between 53.4°F (11.9°C) and 43.9°F (6.6°C). December, marked by an average high-temperature of 53.4°F (11.9°C) and a low-temperature of 43.9°F (6.6°C), is the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Whitethorn, CA
The warmest month (with the highest average high temperature) is September (69.8°F).
The month with the lowest average high temperature is December (53.4°F).
The months with the highest average low temperature are July, August and September (54.3°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure
Whitethorn, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.95"Hg).
Average wind speed
Whitethorn, CA
- Average wind speed in January:
7.8mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.4mph - Average wind speed in May:
9.5mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
8.9mph - Average wind speed in August:
7.8mph - Average wind speed in September:
8.1mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is June (10.6mph).
The calmest months (with the lowest average wind speed) are January and August (7.8mph).
Average humidity
Whitethorn, CA
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (72%).
Average rainfall
Whitethorn, CA
- Average rainfall in January:
4.8" - Average rainfall in February:
4.02" - Average rainfall in March:
4.61" - Average rainfall in April:
2.05" - Average rainfall in May:
1.73" - Average rainfall in June:
0.43"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.12" - Average rainfall in September:
0.47" - Average rainfall in October:
1.97" - Average rainfall in November:
3.19" - Average rainfall in December:
5.31"
The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days
Whitethorn, CA
- Average rainfall days in January:
13 days - Average rainfall days in February:
12.2 days - Average rainfall days in March:
16.4 days - Average rainfall days in April:
10.9 days - Average rainfall days in May:
6.6 days - Average rainfall days in June:
3.7 days
- Average rainfall days in July:
2.4 days - Average rainfall days in August:
1.8 days - Average rainfall days in September:
3.5 days - Average rainfall days in October:
6.7 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
14.8 days
The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is August (1.8 days).
Average snowfall days
Whitethorn, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Whitethorn, CA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
5h and 42min - Average sunshine in March:
6h and 42min - Average sunshine in April:
9h and 12min - Average sunshine in May:
10h and 12min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 24min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Whitethorn, CA
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
17.7 days - Average sunshine days in May:
22.8 days - Average sunshine days in June:
25.3 days
- Average sunshine days in July:
28.4 days - Average sunshine days in August:
28.2 days - Average sunshine days in September:
25.9 days - Average sunshine days in October:
23.3 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.1 days).
Average UV index
Whitethorn, CA
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover
Whitethorn, CA
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility
Whitethorn, CA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





