Climate and monthly weather forecastRohnert Park, CA
Climate and monthly weather forecast
Weather in January
January, like December, is another mild winter month in Rohnert Park, California, with an average temperature ranging between max 57°F (13.9°C) and min 43.2°F (6.2°C). With January's arrival, Rohnert Park's weather records an average high-temperature of a still refreshing 57°F (13.9°C), marking little difference from December's 55.6°F (13.1°C). Weather in January »Weather in February
February, the last month of the winter in Rohnert Park, is another refreshing month, with temperature in the range of an average high of 58.6°F (14.8°C) and an average low of 42.6°F (5.9°C). The arrival of February coincides with an average high-temperature of a still moderate 58.6°F (14.8°C), indicating a minimal shift from January's 57°F (13.9°C). Weather in February »Weather in March
The first month of the spring, March, is still a mild month in Rohnert Park, California, with temperature in the range of an average low of 44.1°F (6.7°C) and an average high of 60.4°F (15.8°C). March's onset sees an average high-temperature of a still mild 60.4°F (15.8°C), exhibiting a slight fluctuation from the previous month. Weather in March »Weather in April
April in Rohnert Park, California, is an enjoyable spring month, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 64.9°F (18.3°C). The arrival of April brings an average high-temperature of an enjoyable 64.9°F (18.3°C), subtly diverging from March's 60.4°F (15.8°C). Weather in April »Weather in May
May, the last month of the spring in Rohnert Park, is a pleasant month, with an average temperature ranging between max 69.3°F (20.7°C) and min 48.6°F (9.2°C). During May, the average high-temperature is an agreeable 69.3°F (20.7°C), maintaining a close resemblance to that of the preceding month. Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Rohnert Park, California, with an average temperature fluctuating between 76.5°F (24.7°C) and 52.9°F (11.6°C). June comes with a subtle rise, with the average high-temperature adjusting from a pleasant 69.3°F (20.7°C) in May to a warm 76.5°F (24.7°C). Weather in June »Weather in July
July, like June, in Rohnert Park, California, is another warm summer month, with an average temperature fluctuating between 54.5°F (12.5°C) and 79.9°F (26.6°C). July and August are known as Rohnert Park's warmest months, with an average high-temperature of 79.9°F (26.6°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Rohnert Park, California, with an average temperature varying between 55°F (12.8°C) and 79.9°F (26.6°C). Rohnert Park's warmest season falls during July and August, averaging a high-temperature of 79.9°F (26.6°C). Weather in August »Weather in September
September, the first month of the autumn in Rohnert Park, is also a moderately hot month, with an average temperature varying between 55°F (12.8°C) and 79.3°F (26.3°C). The average high-temperature for September is a still warm 79.3°F (26.3°C), closely aligning with the temperature of the preceding month. Weather in September »Weather in October
October, like September, is an agreeable autumn month in Rohnert Park, California, with an average temperature ranging between min 51.8°F (11°C) and max 72.3°F (22.4°C). In Rohnert Park, entering October brings a subtle temperature decrement, reducing from September's warm 79.3°F (26.3°C) to an agreeable 72.3°F (22.4°C). Weather in October »Weather in November
The last month of the autumn, November, is also an enjoyable month in Rohnert Park, California, with an average temperature varying between 63.5°F (17.5°C) and 46°F (7.8°C). November heralds a minor drop in average high-temperature, sliding from October's agreeable 72.3°F (22.4°C) to an enjoyable 63.5°F (17.5°C). Weather in November »Weather in December
December, the first month of the winter in Rohnert Park, is also a moderate month, with an average temperature varying between 42.4°F (5.8°C) and 55.6°F (13.1°C). December is the coldest month of the year, registering average temperatures as high as 55.6°F (13.1°C) and as low as 42.4°F (5.8°C). Weather in December »Updated: Feb 9, 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 44.3 rainfall days, and 3.78" (96mm) of precipitation is accumulated.
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.
The month with the most rainfall in Rohnert Park is February, when the rain falls for 5.3 days and typically aggregates up to 0.91" (23mm) of precipitation.
With an average relative humidity of 77%, March is the most humid month.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rohnert Park, California, 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 in Rohnert Park, California, are June through September Rain falls for 0.8 days and accumulates 0.04" (1mm) of rain.
The month with the longest days is June, with an average of 14h and 48min of daylight.
June is the month with the highest UV index in Rohnert Park, California, with an average maximum UV index of 6.
July and August are the warmest months, with an average high-temperature of 79.9°F (26.6°C).
With an average of 11.9h of sunshine, July has the most sunshine of the year in Rohnert Park, California.
With an average relative humidity of 62%, September is the least humid month.
Rohnert Park's coldest weather arrives in December, when temperatures average a high of 55.6°F (13.1°C) and a low of 42.4°F (5.8°C).
With an average of 9h and 30min of daylight, December has the shortest days of the year in Rohnert Park.
December has the least sunshine of the year in Rohnert Park, with an average of 5.7h of sunshine.
Average temperature
Rohnert Park, CA
The warmest months (with the highest average high temperature) are July and August (79.9°F).
The month with the lowest average high temperature is December (55.6°F).
The months with the highest average low temperature are August and September (55°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).
Average pressure
Rohnert Park, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.98"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:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed
Rohnert Park, CA
- Average wind speed in January:
5.1mph - Average wind speed in February:
5.8mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.7mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5mph - Average wind speed in October:
4.9mph - Average wind speed in November:
4.7mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity
Rohnert Park, CA
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).
Average rainfall
Rohnert Park, CA
- Average rainfall in January:
0.51" - Average rainfall in February:
0.91" - Average rainfall in March:
0.55" - Average rainfall in April:
0.16" - 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:
0.43" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is February (0.91").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days
Rohnert Park, CA
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
8.7 days - Average rainfall days in April:
4.8 days - Average rainfall days in May:
2.9 days - Average rainfall days in June:
0.8 days
- Average rainfall days in July:
1 days - Average rainfall days in August:
0.5 days - Average rainfall days in September:
1.7 days - Average rainfall days in October:
2.5 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (0.5 days).
Average daylight / Average sunshine
Rohnert Park, 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 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - 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 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 30min - Average sunshine in April:
10h and 12min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 48min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 30min - Average sunshine in December:
5h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Rohnert Park, CA
- Average sunshine days in January:
23.8 days - Average sunshine days in February:
21.2 days - Average sunshine days in March:
20.8 days - Average sunshine days in April:
24 days - Average sunshine days in May:
26.6 days - Average sunshine days in June:
27.7 days
- Average sunshine days in July:
27.6 days - Average sunshine days in August:
27.1 days - Average sunshine days in September:
27.5 days - Average sunshine days in October:
26.8 days - Average sunshine days in November:
23.8 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is March (20.8 days).
Average UV index
Rohnert Park, CA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Rohnert Park, CA
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility
Rohnert Park, 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).
