Climate and monthly weather forecastShasta Lake, CA
Climate and monthly weather forecast
Weather in January
January in Shasta Lake, California, is a fresh winter month, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 51.4°F (10.8°C). January's commencement is accompanied by an average high-temperature of a fresh 51.4°F (10.8°C), diverging marginally from December's 49.3°F (9.6°C). Weather in January »Weather in February
February, the last month of the winter in Shasta Lake, is also a fresh month, with temperature in the range of an average low of 36.7°F (2.6°C) and an average high of 53.1°F (11.7°C). The arrival of February sees an average high-temperature of a still cool 53.1°F (11.7°C), hardly diverging from January's 51.4°F (10.8°C). Weather in February »Weather in March
March, the first month of the spring in Shasta Lake, is a mild month, with an average temperature ranging between max 55.6°F (13.1°C) and min 38.5°F (3.6°C). The advent of March brings an average high-temperature of a moderate 55.6°F (13.1°C), exhibiting minor difference from the previous month. Weather in March »Weather in April
April is a comfortable spring month in Shasta Lake, California, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 63.3°F (17.4°C). Shasta Lake in April observes a minor temperature shift, with average high-temperatures adjusting from a refreshing 55.6°F (13.1°C) in March to a comfortable 63.3°F (17.4°C). Weather in April »Weather in May
May, the last month of the spring in Shasta Lake, is an agreeable month, with an average temperature ranging between min 47.7°F (8.7°C) and max 72.3°F (22.4°C). May's onset witnesses a shift in the average high-temperature, moving from a refreshing 63.3°F (17.4°C) in April to a pleasant 72.3°F (22.4°C). Weather in May »Weather in June
June, the first month of the summer in Shasta Lake, is a warm month, with an average temperature fluctuating between 83.3°F (28.5°C) and 55.8°F (13.2°C). With the onset of June, Shasta Lake's average high-temperature experiences a rise, moving from May's pleasant 72.3°F (22.4°C) to a moderately hot 83.3°F (28.5°C). Weather in June »Weather in July
July in Shasta Lake, California, is a hot summer month, with an average temperature ranging between max 92.3°F (33.5°C) and min 61.3°F (16.3°C). The temperatures reach their highest averages in July, with highs of 92.3°F (33.5°C) and lows of 61.3°F (16.3°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Shasta Lake, California, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 91.2°F (32.9°C). Transitioning from July to August, Shasta Lake observes an average high-temperature of a still tropical 91.2°F (32.9°C), differing subtly from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Shasta Lake, is also a moderately hot month, with an average temperature fluctuating between 84.2°F (29°C) and 55.6°F (13.1°C). With the onset of September, Shasta Lake's climate undergoes a slight change as the average high-temperature moves from a hot 91.2°F (32.9°C) in August to a warm 84.2°F (29°C). Weather in September »Weather in October
October, the same as September, in Shasta Lake, California, is an agreeable autumn month, with an average temperature ranging between min 48°F (8.9°C) and max 71.2°F (21.8°C). October brings a minor decrease, with the average high-temperature reducing from a moderately hot 84.2°F (29°C) in September to a pleasant 71.2°F (21.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Shasta Lake, California, with an average temperature ranging between min 40.5°F (4.7°C) and max 58.1°F (14.5°C). Shasta Lake in November undergoes a mild reduction in the average high-temperature, shifting from October's agreeable 71.2°F (21.8°C) to a refreshing 58.1°F (14.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Shasta Lake, California, with an average temperature ranging between max 49.3°F (9.6°C) and min 35.2°F (1.8°C). In Shasta Lake, December is the month with the lowest recorded average temperatures, measuring a high of 49.3°F (9.6°C) and a low of 35.2°F (1.8°C). Weather in December »Updated: Feb 10, 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
In Shasta Lake, California, during the entire year, the rain falls for 99.5 days and collects up to 30.43" (773mm) of precipitation.
Months with snowfall in Shasta Lake are January through March, November and December.
Throughout the year, in Shasta Lake, there are 2.8 snowfall days, and 1.57" (40mm) of snow is accumulated.
February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Shasta Lake.
The most humid month is March, with an average relative humidity of 76%.
The month with the most rainfall is March, when the rain falls for 16.8 days and typically aggregates up to 5.91" (150mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
In Shasta Lake, snow does not fall in April through October.
The month with the longest days in Shasta Lake is June, with an average of 15h and 0min of daylight.
July is the warmest month of the year, registering average temperatures as high as 92.3°F (33.5°C) and as low as 61.3°F (16.3°C).
The month with the least rainfall in Shasta Lake, California, is July, when the rain falls for 1.8 days and typically collects 0.08" (2mm) of precipitation.
July has the most sunshine of the year, with an average of 12.2h of sunshine.
July is the month with the highest UV index in Shasta Lake, with an average maximum UV index of 7.
With an average relative humidity of 35%, August is the least humid month in Shasta Lake.
December tends to be the coldest month in Shasta Lake, with temperatures averaging a daily high of 49.3°F (9.6°C) and a low of 35.2°F (1.8°C).
The month with the most snowfall in Shasta Lake is December, when snow falls for 0.8 days and typically aggregates up to 0.63" (16mm) of snow.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
December has the least sunshine of the year, with an average of 5.5h of sunshine.
Average temperature
Shasta Lake, CA
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (49.3°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).
Average pressure
Shasta Lake, 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 Lake, 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:
5.2mph - Average wind speed in May:
5mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.4mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.4mph - Average wind speed in December:
4.5mph
The windiest months (with the highest average wind speed) are March, April, June and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.4mph).
Average humidity
Shasta Lake, CA
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is August (35%).
Average rainfall
Shasta Lake, CA
- Average rainfall in January:
5.2" - Average rainfall in February:
4.8" - Average rainfall in March:
5.91" - Average rainfall in April:
2.32" - Average rainfall in May:
1.89" - Average rainfall in June:
0.35"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.16" - Average rainfall in September:
0.35" - Average rainfall in October:
1.69" - Average rainfall in November:
2.99" - Average rainfall in December:
4.69"
The wettest month (with the highest rainfall) is March (5.91").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days
Shasta Lake, CA
- Average rainfall days in January:
12.4 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
16.8 days - Average rainfall days in April:
12.1 days - Average rainfall days in May:
8.8 days - Average rainfall days in June:
3.6 days
- Average rainfall days in July:
1.8 days - Average rainfall days in August:
1.6 days - Average rainfall days in September:
3.5 days - Average rainfall days in October:
5.4 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
13.9 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.6 days).
Average snowfall
Shasta Lake, CA
The month with the highest snowfall is December (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Shasta Lake, CA
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
1.1 days - Average snowfall days in March:
0.3 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:
0.3 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Shasta Lake, 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:
6h and 0min - Average sunshine in March:
7h and 12min - Average sunshine in April:
10h and 12min - Average sunshine in May:
11h and 6min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h and 12min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 6min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 18min - Average sunshine in December:
5h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
Shasta Lake, CA
- Average sunshine days in January:
17.1 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
12.7 days - Average sunshine days in April:
16 days - Average sunshine days in May:
20.8 days - Average sunshine days in June:
24.6 days
- Average sunshine days in July:
27.2 days - Average sunshine days in August:
27.3 days - Average sunshine days in September:
25.1 days - Average sunshine days in October:
24.4 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
16 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (12.7 days).
Average UV index
Shasta Lake, CA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover
Shasta Lake, CA
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility
Shasta Lake, 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).
