Climate and monthly weather forecastShasta, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another fresh winter month in Shasta, California, with an average temperature fluctuating between 53.1°F (11.7°C) and 38.3°F (3.5°C). During January, Shasta observes a subtle ascent to a still cool 53.1°F (11.7°C) from December's 50.9°F (10.5°C) in the average high-temperature. Weather in January »Weather in February
The last month of the winter, February, is another cool month in Shasta, California, with temperature in the range of an average high of 54.7°F (12.6°C) and an average low of 37.9°F (3.3°C). Welcoming February, Shasta notes an average high-temperature of a still cool 54.7°F (12.6°C), nearly consistent with January's 53.1°F (11.7°C). Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Shasta, California, with an average temperature fluctuating between 39.7°F (4.3°C) and 57.2°F (14°C). March's onset records an average high-temperature of a moderate 57.2°F (14°C), a near match to February's 54.7°F (12.6°C). Weather in March »Weather in April
April in Shasta, California, is a comfortable spring month, with an average temperature fluctuating between 65.5°F (18.6°C) and 43°F (6.1°C). A soft shift in the average high-temperature is noticeable in April, transitioning from a mild 57.2°F (14°C) in March to an enjoyable 65.5°F (18.6°C). Weather in April »Weather in May
May, the last month of the spring in Shasta, is a warm month, with an average temperature fluctuating between 74.7°F (23.7°C) and 49.1°F (9.5°C). May's arrival is marked by an increase in the average high-temperature, moving from a comfortable 65.5°F (18.6°C) in April to a moderately hot 74.7°F (23.7°C). Weather in May »Weather in June
June, the first month of the summer in Shasta, is also a moderately hot month, with an average temperature ranging between max 85.6°F (29.8°C) and min 57°F (13.9°C). June sees a rise in the average high-temperature, climbing from 74.7°F (23.7°C) in May to a still warm 85.6°F (29.8°C). Weather in June »Weather in July
July in Shasta, California, is a hot summer month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 94.6°F (34.8°C). Shasta reaches its highest average temperatures in July, measuring 94.6°F (34.8°C) at the peak and 62.4°F (16.9°C) at the lowest. Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Shasta, California, with an average temperature ranging between max 93.6°F (34.2°C) and min 61.7°F (16.5°C). Shasta measures an average high-temperature of a still hot 93.6°F (34.2°C) in August, nearly consistent with the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Shasta, is also a hot month, with an average temperature fluctuating between 86°F (30°C) and 57.7°F (14.3°C). September's onset introduces a mild reduction in the average high-temperature, from 93.6°F (34.2°C) in August to a still tropical 86°F (30°C). Weather in September »Weather in October
October, the same as September, in Shasta, California, is another pleasant autumn month, with an average temperature ranging between min 49.8°F (9.9°C) and max 72.9°F (22.7°C). The decrease of average high-temperatures is mild in October, with a decline from a hot 86°F (30°C) in September to an agreeable 72.9°F (22.7°C). Weather in October »Weather in November
November, the last month of the autumn in Shasta, is another mild month, with an average temperature varying between 41.7°F (5.4°C) and 59.9°F (15.5°C). As October transitions to November, the average high-temperature falls from an agreeable 72.9°F (22.7°C) to a mild 59.9°F (15.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Shasta, California, with an average temperature fluctuating between 50.9°F (10.5°C) and 36.7°F (2.6°C). Shasta's coldest month, December, generally records average temperatures ranging from a high of 50.9°F (10.5°C) to a low of 36.7°F (2.6°C). Weather in December »Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Throughout the year, there are 92.2 rainfall days, and 20.16" (512mm) of precipitation is accumulated.
In Shasta, snow does not fall in January, April through November.
Throughout the year, 0.43" (11mm) of snow is accumulated.
Months with snowfall are February, March and December.
The month with the lowest UV index is February, with an average maximum UV index of 2.
March is the most humid month, with an average relative humidity of 74%.
March is the month with the most rainfall. Rain falls for 15.8 days and accumulates 3.94" (100mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Shasta, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
The month with the longest days is June, with an average of 15h and 0min of daylight.
June and July, with an average maximum UV index of 7, are months with the highest UV index in Shasta.
In Shasta, the peak temperatures are generally noted in July, averaging a high of 94.6°F (34.8°C) and a low of 62.4°F (16.9°C).
July is the month with the least rainfall. Rain falls for 1.9 days and accumulates 0.08" (2mm) of precipitation.
The month with the most sunshine is July, with an average of 12.1h of sunshine.
August is the least humid month, with an average relative humidity of 33%.
In Shasta, the average lowest temperatures are observed in December, with a high of 50.9°F (10.5°C) and a low of 36.7°F (2.6°C).
The month with the most snowfall is December, when snow falls for 0.2 days and typically aggregates up to 0.31" (8mm) of snow.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
The month with the least sunshine is December, with an average of 5.5h of sunshine.
Average temperature
Shasta, CA
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (50.9°F).
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is December (36.7°F).
Average pressure
Shasta, CA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.94"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed
Shasta, CA
- Average wind speed in January:
4.7mph - Average wind speed in February:
5.1mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.1mph - Average wind speed in May:
5mph - Average wind speed in June:
5.1mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.3mph - Average wind speed in December:
4.5mph
The windiest months (with the highest average wind speed) are March and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.3mph).
Average humidity
Shasta, CA
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is August (33%).
Average rainfall
Shasta, CA
- Average rainfall in January:
3.39" - Average rainfall in February:
2.83" - Average rainfall in March:
3.94" - Average rainfall in April:
1.65" - Average rainfall in May:
1.42" - Average rainfall in June:
0.31"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.12" - Average rainfall in September:
0.28" - Average rainfall in October:
1.22" - Average rainfall in November:
1.97" - Average rainfall in December:
2.95"
The wettest month (with the highest rainfall) is March (3.94").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days
Shasta, CA
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
15.8 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
8.8 days - Average rainfall days in June:
3.6 days
- Average rainfall days in July:
1.9 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
3.5 days - Average rainfall days in October:
5 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
11.8 days
The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (1.3 days).
Average snowfall
Shasta, CA
The month with the highest snowfall is December (0.31").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days
Shasta, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.5 days - Average snowfall days in March:
0.1 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:
0.1 days - Average snowfall days in December:
0.2 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Shasta, 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 30min - 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:
9h and 54min - Average daylight in December:
9h and 18min
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 18min).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
5h and 54min - Average sunshine in March:
7h and 18min - Average sunshine in April:
10h and 18min - Average sunshine in May:
11h and 6min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 6min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 24min - Average sunshine in December:
5h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
Shasta, CA
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
16.4 days - Average sunshine days in May:
19.7 days - Average sunshine days in June:
23.9 days
- Average sunshine days in July:
26.7 days - Average sunshine days in August:
27.8 days - Average sunshine days in September:
25.5 days - Average sunshine days in October:
24.5 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (13.5 days).
Average UV index
Shasta, CA
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is February (UV index 2).
Average cloud cover
Shasta, CA
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility
Shasta, 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).
