Climate and monthly weather forecastAtwater, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Atwater, California, is another refreshing winter month, with an average temperature fluctuating between 42.1°F (5.6°C) and 58.5°F (14.7°C). The arrival of January denotes a barely perceptible change in the average high-temperatures to a still mild 58.5°F (14.7°C) from December's 56.1°F (13.4°C). Weather in January »Weather in February
The last month of the winter, February, is an enjoyable month in Atwater, California, with an average temperature fluctuating between 61.3°F (16.3°C) and 42.3°F (5.7°C). February's onset brings an average high-temperature of a comfortable 61.3°F (16.3°C), showing a minute difference from January's 58.5°F (14.7°C). Weather in February »Weather in March
March, the first month of the spring in Atwater, is still a comfortable month, with an average temperature varying between 44.6°F (7°C) and 66.4°F (19.1°C). As March takes its course, Atwater's average high-temperature registers at a still refreshing 66.4°F (19.1°C), closely aligning with the preceding month. Weather in March »Weather in April
April in Atwater, California, is an agreeable spring month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 73°F (22.8°C). The commencement of April sees a minor shift in the average high-temperature, moving from an enjoyable 66.4°F (19.1°C) in March to a pleasant 73°F (22.8°C). Weather in April »Weather in May
May, the last month of the spring in Atwater, is a moderately hot month, with an average temperature fluctuating between 81°F (27.2°C) and 54.1°F (12.3°C). A soft shift in the average high-temperature is noticeable in May, transitioning from a pleasant 73°F (22.8°C) in April to a warm 81°F (27.2°C). Weather in May »Weather in June
June, the first month of the summer in Atwater, is a tropical month, with an average temperature fluctuating between 91.6°F (33.1°C) and 60.3°F (15.7°C). June shows a rise in the average high-temperature, moving from May's moderately hot 81°F (27.2°C) to a tropical 91.6°F (33.1°C). Weather in June »Weather in July
July is a sweltering summer month in Atwater, California, with an average temperature varying between 63.9°F (17.7°C) and 98.6°F (37°C). In Atwater, July records the highest average temperatures, peaking at 98.6°F (37°C) and reaching a low of 63.9°F (17.7°C). Weather in July »Weather in August
August, the last month of the summer in Atwater, is also a sweltering month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 97.3°F (36.3°C). In August, the average high-temperature registers at a still very hot 97.3°F (36.3°C), nearly identical to July's 98.6°F (37°C). Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in Atwater, California, with an average temperature ranging between min 61.3°F (16.3°C) and max 91.4°F (33°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from a very hot 97.3°F (36.3°C) in August to a hot 91.4°F (33°C). Weather in September »Weather in October
October, like September, in Atwater, California, is another warm autumn month, with an average temperature varying between 78.4°F (25.8°C) and 54.9°F (12.7°C). October weather is marked by a drop in the average high-temperature, falling from a hot 91.4°F (33°C) in September to a warm 78.4°F (25.8°C). Weather in October »Weather in November
November, the last month of the autumn in Atwater, is another comfortable month, with an average temperature fluctuating between 46.8°F (8.2°C) and 65.7°F (18.7°C). November weather is marked by a drop in the average high-temperature, falling from a moderately hot 78.4°F (25.8°C) in October to a comfortable 65.7°F (18.7°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderate month in Atwater, California, with an average temperature varying between 41.9°F (5.5°C) and 56.1°F (13.4°C). December brings the lowest temperatures, with an average high of 56.1°F (13.4°C) and an average low of 41.9°F (5.5°C). Weather in December »Updated: Aug 8, 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
With an average relative humidity of 71%, January is the most humid month.
In Atwater, during the entire year, the rain falls for 36.8 days and collects up to 3.03" (77mm) of precipitation.
The months with the lowest UV index in Atwater are January, February, November and December, with an average maximum UV index of 3.
The wettest months are March and December, with an average 0.55" (14mm) of rainfall.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Atwater, 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 months with the least rainfall are June through September Rain falls for 0.5 days and accumulates 0.04" (1mm) of rain.
June has the longest days of the year in Atwater, with an average of 14h and 42min of daylight.
June through August, with an average maximum UV index of 7, are months with the highest UV index.
The warmest temperatures occur during July, when averages reach a peak of 98.6°F (37°C) and a low of 63.9°F (17.7°C).
With an average relative humidity of 34%, July is the least humid month.
With an average of 12.2h of sunshine, July has the most sunshine of the year.
With average high and low temperatures of 56.1°F (13.4°C) and 41.9°F (5.5°C) respectively, December is Atwater's coldest month.
The month with the shortest days is December, with an average of 9h and 36min of daylight.
With an average of 6.2h of sunshine, December has the least sunshine of the year.
Average temperature
Atwater, CA
The warmest month (with the highest average high temperature) is July (98.6°F).
The month with the lowest average high temperature is December (56.1°F).
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure
Atwater, CA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Atwater, CA
- Average wind speed in July:
7.1mph - Average wind speed in August:
6.6mph - Average wind speed in September:
5.9mph - Average wind speed in October:
5.6mph - Average wind speed in November:
4.9mph - Average wind speed in December:
5.3mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity
Atwater, CA
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is July (34%).
Average rainfall
Atwater, CA
- Average rainfall in January:
0.39" - Average rainfall in February:
0.47" - Average rainfall in March:
0.55" - Average rainfall in April:
0.24" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.04" - Average rainfall in October:
0.16" - Average rainfall in November:
0.28" - Average rainfall in December:
0.55"
The wettest months (with the highest rainfall) are March and December (0.55").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days
Atwater, CA
- Average rainfall days in January:
4.2 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
6.8 days - Average rainfall days in April:
5.2 days - Average rainfall days in May:
2.4 days - Average rainfall days in June:
0.5 days
- Average rainfall days in July:
1.6 days - Average rainfall days in August:
1.1 days - Average rainfall days in September:
1.1 days - Average rainfall days in October:
1.7 days - Average rainfall days in November:
2.8 days - Average rainfall days in December:
5.1 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (0.5 days).
Average daylight / Average sunshine
Atwater, CA
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - 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 12min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
6h and 24min - Average sunshine in February:
6h and 24min - Average sunshine in March:
8h and 24min - Average sunshine in April:
10h and 48min - Average sunshine in May:
11h and 24min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 12min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 30min - Average sunshine in October:
7h and 30min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days
Atwater, CA
- Average sunshine days in January:
25.8 days - Average sunshine days in February:
23 days - Average sunshine days in March:
23.8 days - Average sunshine days in April:
25.3 days - Average sunshine days in May:
28.3 days - Average sunshine days in June:
28.8 days
- Average sunshine days in July:
28.2 days - Average sunshine days in August:
28.9 days - Average sunshine days in September:
28.5 days - Average sunshine days in October:
28.8 days - Average sunshine days in November:
26.7 days - Average sunshine days in December:
24.9 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is February (23 days).
Average UV index
Atwater, CA
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Atwater, CA
The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility
Atwater, 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).
