Climate and monthly weather forecastUpper Lake, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another fresh winter month in Upper Lake, California, with an average temperature fluctuating between 38.7°F (3.7°C) and 54.7°F (12.6°C). Upper Lake's average high-temperature in January sits at a still fresh 54.7°F (12.6°C), showing little difference from the previous month. Weather in January »Weather in February
The last month of the winter, February, is a moderate month in Upper Lake, California, with an average temperature ranging between max 55.9°F (13.3°C) and min 37.9°F (3.3°C). Upper Lake marks the start of February with an average high-temperature of a moderate 55.9°F (13.3°C), hinting at a slight fluctuation from January's 54.7°F (12.6°C). Weather in February »Weather in March
March, the first month of the spring in Upper Lake, is also a moderate month, with an average temperature varying between 38.8°F (3.8°C) and 57.9°F (14.4°C). Upper Lake, California, notes an average high-temperature of a still refreshing 57.9°F (14.4°C) in March, hardly diverging from February. Weather in March »Weather in April
April in Upper Lake, California, is a comfortable spring month, with an average temperature varying between 64.8°F (18.2°C) and 42.3°F (5.7°C). The coming of April brings a minor shift in Upper Lake's weather, with average high-temperatures adjusting from March's moderate 57.9°F (14.4°C) to an enjoyable 64.8°F (18.2°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Upper Lake, California, with an average temperature varying between 72.1°F (22.3°C) and 46.9°F (8.3°C). May signifies a subtle uplift in the average high-temperature, adjusting from a refreshing 64.8°F (18.2°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »Weather in June
June, the first month of the summer in Upper Lake, is a moderately hot month, with an average temperature ranging between min 54.1°F (12.3°C) and max 82.6°F (28.1°C). Observing a rise in June, the average high-temperature goes from May's pleasant 72.1°F (22.3°C) to a moderately hot 82.6°F (28.1°C). Weather in June »Weather in July
July in Upper Lake, California, is a tropical summer month, with an average temperature fluctuating between 89.6°F (32°C) and 57.7°F (14.3°C). Upper Lake experiences its highest average temperatures in July, reaching a peak of 89.6°F (32°C) and a minimum of 57.7°F (14.3°C). The heat index value for July is estimated at a tropical 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Upper Lake, is also a hot month, with an average temperature ranging between min 57.4°F (14.1°C) and max 89.1°F (31.7°C). August's average high-temperature is a still hot 89.1°F (31.7°C), maintaining a close comparison with July's 89.6°F (32°C). Weather in August »Weather in September
September, the first month of the autumn in Upper Lake, is also a moderately hot month, with an average temperature fluctuating between 84.2°F (29°C) and 54.1°F (12.3°C). September registers an average high-temperature of a moderately hot 84.2°F (29°C), slightly varied from August's 89.1°F (31.7°C). Weather in September »Weather in October
October, the same as September, in Upper Lake, California, is another pleasant autumn month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 48°F (8.9°C). October indicates a shift in the average high-temperature, from September's warm 84.2°F (29°C) to an agreeable 72.5°F (22.5°C). Weather in October »Weather in November
November, the last month of the autumn in Upper Lake, is also a moderate month, with an average temperature fluctuating between 60.1°F (15.6°C) and 40.6°F (4.8°C). In Upper Lake, entering November brings a temperature decrement, reducing from October's agreeable 72.5°F (22.5°C) to a refreshing 60.1°F (15.6°C). Weather in November »Weather in December
December, the first month of the winter in Upper Lake, is also a fresh month, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 37.2°F (2.9°C). December, with its average high-temperature of 52.3°F (11.3°C) and an average low-temperature of 37.2°F (2.9°C), holds the record as the coldest month. Weather in December »Updated: Jun 22, 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 rainfall days, and 21.02" (534mm) of precipitation is accumulated.
January through March, November and December are months with snowfall.
The months with the most snowfall are January and February, with an average 0.47" (12mm) of accumulated snow.
In Upper Lake, during the entire year, snow falls for 2 days and aggregates up to 1.34" (34mm) of snow.
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.
February is the month with the most rainfall. Rain falls for 10.3 days and accumulates 4.06" (103mm) of precipitation.
With an average relative humidity of 75%, March is the most humid month.
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 Upper Lake, snow does not fall in April through October.
June has the longest days of the year, with an average of 14h and 54min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
July is Upper Lake's warmest month, registering average high temperatures of 89.6°F (32°C) and lows of 57.7°F (14.3°C).
The least humid month in Upper Lake is July, with an average relative humidity of 47%.
The month with the least rainfall in Upper Lake is July, when the rain falls for 1.3 days and typically collects 0.04" (1mm) of precipitation.
With an average of 12h of sunshine, July has the most sunshine of the year.
The coldest period is December, when temperatures fluctuate between an average high of 52.3°F (11.3°C) and a low of 37.2°F (2.9°C).
The month with the shortest days is December, with an average of 9h and 30min of daylight.
December has the least sunshine of the year, with an average of 5.3h of sunshine.
Average temperature
Upper Lake, CA
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (52.3°F).
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).
Average pressure
Upper Lake, CA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed
Upper Lake, CA
- Average wind speed in January:
4.5mph - Average wind speed in February:
5mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.3mph - Average wind speed in May:
5.2mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.3mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.1mph - Average wind speed in December:
4.4mph
The windiest month (with the highest average wind speed) is April (5.3mph).
The calmest month (with the lowest average wind speed) is November (4.1mph).
Average humidity
Upper Lake, CA
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (47%).
Average rainfall
Upper Lake, CA
- Average rainfall in January:
3.74" - Average rainfall in February:
4.06" - Average rainfall in March:
3.39" - Average rainfall in April:
1.18" - Average rainfall in May:
1.26" - Average rainfall in June:
0.28"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.08" - Average rainfall in September:
0.16" - Average rainfall in October:
1.26" - Average rainfall in November:
1.89" - Average rainfall in December:
3.7"
The wettest month (with the highest rainfall) is February (4.06").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days
Upper Lake, CA
- Average rainfall days in January:
11.6 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
15.9 days - Average rainfall days in April:
11 days - Average rainfall days in May:
8.3 days - Average rainfall days in June:
3.4 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
2.5 days - Average rainfall days in October:
5.4 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
12.3 days
The month with the highest number of rainy days is March (15.9 days).
The months with the least rainy days are July and August (1.3 days).
Average snowfall
Upper Lake, CA
The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Upper Lake, CA
- Average snowfall days in January:
0.2 days - Average snowfall days in February:
0.9 days - Average snowfall days in March:
0.5 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:
0.2 days - Average snowfall days in December:
0.2 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Upper Lake, CA
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
5h and 42min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 42min - Average sunshine in May:
10h and 30min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 54min - Average sunshine in September:
11h and 0min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 18min - Average sunshine in December:
5h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
Upper Lake, CA
- Average sunshine days in January:
18 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
13.7 days - Average sunshine days in April:
17.3 days - Average sunshine days in May:
21.3 days - Average sunshine days in June:
25.5 days
- Average sunshine days in July:
28.3 days - Average sunshine days in August:
28.3 days - Average sunshine days in September:
26.7 days - Average sunshine days in October:
24.4 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
17.6 days
The months with the most sunshine days are July and August (28.3 days).
The month with the least sunshine days is March (13.7 days).
Average UV index
Upper Lake, CA
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
Upper Lake, CA
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility
Upper Lake, CA
The months with the highest visibility are January, February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are March and December (5mi).
