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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January is a moderate winter month in Grimes, California, with an average temperature fluctuating between 41.9°F (5.5°C) and 56.8°F (13.8°C). As Grimes, California, steps into January, the average high-temperature holds at a refreshing 56.8°F (13.8°C), hinting at a minor fluctuation from the prior month. Weather in January »
Weather in February
February, the last month of the winter in Grimes, is another refreshing month, with an average temperature varying between 42.4°F (5.8°C) and 59.2°F (15.1°C). The introduction of February notes a subtle temperature variation to a still refreshing 59.2°F (15.1°C) from January's 56.8°F (13.8°C). Weather in February »
Weather in March
March, the first month of the spring in Grimes, is a comfortable month, with an average temperature varying between 44.2°F (6.8°C) and 63°F (17.2°C). February's transformation into March witnesses an average high-temperature of an enjoyable 63°F (17.2°C), noting a minor change from the preceding month. Weather in March »
Weather in April
April is a pleasant spring month in Grimes, California, with an average temperature ranging between max 70.5°F (21.4°C) and min 48°F (8.9°C). The onset of April marks a slight increase in the average high-temperature, moving from an enjoyable 63°F (17.2°C) in March to an agreeable 70.5°F (21.4°C). Weather in April »
Weather in May
May, the last month of the spring in Grimes, is a moderately hot month, with an average temperature fluctuating between 53.2°F (11.8°C) and 79.3°F (26.3°C). The start of May brings a subtle rise in the average high-temperature, moving from an agreeable 70.5°F (21.4°C) in April to a moderately hot 79.3°F (26.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a hot month in Grimes, California, with an average temperature varying between 59.7°F (15.4°C) and 90°F (32.2°C). June sees a rise in the average high-temperature, climbing from a moderately hot 79.3°F (26.3°C) in May to a tropical 90°F (32.2°C). Weather in June »
Weather in July
July in Grimes, California, is a sweltering summer month, with temperature in the range of an average high of 97.2°F (36.2°C) and an average low of 62.1°F (16.7°C). July, recording an average high temperature of 97.2°F (36.2°C) and a low temperature of 62.1°F (16.7°C), is Grimes's warmest month. Weather in July »
Weather in August
The last month of the summer, August, is another torrid month in Grimes, California, with an average temperature varying between 61.5°F (16.4°C) and 95.7°F (35.4°C). August brings an average high-temperature of a still fiery hot 95.7°F (35.4°C), showing a slight difference from July's 97.2°F (36.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a tropical month in Grimes, California, with temperature in the range of an average high of 89.8°F (32.1°C) and an average low of 60.3°F (15.7°C). September sees a slight reduction in average high-temperature, with a shift from a very hot 95.7°F (35.4°C) in August to a tropical 89.8°F (32.1°C). Weather in September »
Weather in October
October, like September, in Grimes, California, is a moderately hot autumn month, with temperature in the range of an average high of 77°F (25°C) and an average low of 54.5°F (12.5°C). The shift from September to October involves a decrease in the average high-temperature, from a hot 89.8°F (32.1°C) to a warm 77°F (25°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an enjoyable month in Grimes, California, with an average temperature fluctuating between 63.5°F (17.5°C) and 46.4°F (8°C). With November's arrival, Grimes's weather changes as the average high-temperature falls from a warm 77°F (25°C) in October to a comfortable 63.5°F (17.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cool month in Grimes, California, with an average temperature fluctuating between 41.4°F (5.2°C) and 54.5°F (12.5°C). The coldest month is December, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 41.4°F (5.2°C). Weather in December »
Updated: Jun 18, 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
How many days does it rain?
In Grimes, California, during the entire year, the rain falls for 75.1 days and collects up to 17.09" (434mm) of precipitation.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.
What is the wettest month?
February is the month with the most rainfall. Rain falls for 9.3 days and accumulates 3.07" (78mm) of precipitation.
What is the most humid month?
With an average relative humidity of 73%, March is the most humid month.
When is Daylight Saving Time (DST)?
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.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 7.
What are the warmest months?
With average high and low temperatures of 97.2°F (36.2°C) and 62.1°F (16.7°C) respectively, July is Grimes's warmest month.
What is the least humid month?
The months with the lowest humidity are July and September, with an average relative humidity of 38%.
What is the driest month?
The months with the least rainfall are July and August Rain falls for 0.9 days and accumulates 0.04" (1mm) of rain.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 12.2h of sunshine.
What are the coldest months?
In Grimes, December is the month with the lowest recorded average temperatures, measuring a high of 54.5°F (12.5°C) and a low of 41.4°F (5.2°C).
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
What is the month with the least sunshine?
With an average of 5.8h of sunshine, December has the least sunshine of the year.
Average temperature
Grimes, CA
The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (54.5°F).
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure
Grimes, CA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.91"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:
30.08"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Grimes, CA
- Average wind speed in January:
5mph - Average wind speed in February:
5.8mph - Average wind speed in March:
6.1mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.5mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
5.3mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity
Grimes, CA
The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July and September (38%).
Average rainfall
Grimes, CA
- Average rainfall in January:
2.6" - Average rainfall in February:
3.07" - Average rainfall in March:
2.99" - Average rainfall in April:
1.14" - Average rainfall in May:
0.98" - Average rainfall in June:
0.2"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.16" - Average rainfall in October:
0.87" - Average rainfall in November:
1.97" - Average rainfall in December:
3.03"
The wettest month (with the highest rainfall) is February (3.07").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Grimes, CA
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
8.5 days - Average rainfall days in May:
5.3 days - Average rainfall days in June:
2.2 days
- Average rainfall days in July:
0.9 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
1.8 days - Average rainfall days in October:
3.9 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
11.1 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is July (0.9 days).
Average daylight / Average sunshine
Grimes, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
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:
6h and 0min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 4min - Average sunshine in April:
10h and 1min - Average sunshine in May:
11h and 1min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 1min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 3min - Average sunshine in December:
5h and 5min
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 48min).
Average sunshine days
Grimes, CA
- Average sunshine days in January:
20.6 days - Average sunshine days in February:
18.2 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
20.3 days - Average sunshine days in May:
24.4 days - Average sunshine days in June:
27.4 days
- Average sunshine days in July:
29.7 days - Average sunshine days in August:
29.4 days - Average sunshine days in September:
27.8 days - Average sunshine days in October:
26.5 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (16.2 days).
Average UV index
Grimes, CA
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Grimes, CA
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility
Grimes, 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).
Grimes, California, USA
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