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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 snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January is a comfortable winter month in Grand Terrace, California, with an average temperature fluctuating between 62.2°F (16.8°C) and 44.6°F (7°C). The transition from December to January sees an average high-temperature of an enjoyable 62.2°F (16.8°C), indicating a minor variance from the prior month. Weather in January »
Weather in February
February, the last month of the winter in Grand Terrace, is another refreshing month, with an average temperature ranging between max 62.4°F (16.9°C) and min 43.5°F (6.4°C). February's arrival brings an average high-temperature of a still enjoyable 62.4°F (16.9°C), demonstrating subtle variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Grand Terrace, is still a comfortable month, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 66.9°F (19.4°C). In March, Grand Terrace experiences a minor shift in meteorological conditions with average high-temperatures marked at a still comfortable 66.9°F (19.4°C), closely mirroring the climate in February. Weather in March »
Weather in April
April in Grand Terrace, California, is an agreeable spring month, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 71.4°F (21.9°C). The average high-temperature during April is a pleasant 71.4°F (21.9°C), almost matching the conditions of the preceding month. Weather in April »
Weather in May
May, the last month of the spring in Grand Terrace, is a warm month, with an average temperature fluctuating between 76.5°F (24.7°C) and 52.7°F (11.5°C). As May unfolds, the average high-temperature reaches a moderately hot 76.5°F (24.7°C), hinting at a slight fluctuation from the previous month. Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Grand Terrace, California, with an average temperature ranging between max 85.1°F (29.5°C) and min 58.5°F (14.7°C). Grand Terrace's transition into June is marked by a minor temperature shift, moving from 76.5°F (24.7°C) in May to a still moderately hot 85.1°F (29.5°C). Weather in June »
Weather in July
July is a hot summer month in Grand Terrace, California, with an average temperature fluctuating between 64.9°F (18.3°C) and 91°F (32.8°C). July's onset brings a subtle temperature rise, moving from a warm 85.1°F (29.5°C) in June to a tropical 91°F (32.8°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Grand Terrace, California, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 91.9°F (33.3°C). The month of August sees the highest average temperatures, reaching 91.9°F (33.3°C) at the peak and 65.8°F (18.8°C) at the low. Weather in August »
Weather in September
September, the first month of the autumn in Grand Terrace, is also a hot month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 87.4°F (30.8°C). September's arrival registers an average high-temperature of a still hot 87.4°F (30.8°C), closely aligning with the temperature of the previous month. Weather in September »
Weather in October
October, like September, in Grand Terrace, California, is a moderately hot autumn month, with an average temperature varying between 56.3°F (13.5°C) and 78.1°F (25.6°C). With the onset of October, Grand Terrace experiences a modest temperature adjustment, with the average high-temperature receding from a tropical 87.4°F (30.8°C) in September to a moderately hot 78.1°F (25.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Grand Terrace, is also an agreeable month, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 68.9°F (20.5°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a moderately hot 78.1°F (25.6°C) to an agreeable 68.9°F (20.5°C). Weather in November »
Weather in December
December, the first month of the winter in Grand Terrace, is still a refreshing month, with an average temperature varying between 59.9°F (15.5°C) and 43.7°F (6.5°C). Grand Terrace reaches its lowest average temperatures in December, measuring 59.9°F (15.5°C) at the peak and 43.7°F (6.5°C) at the lowest. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Grand Terrace?
In Grand Terrace, California, during the entire year, the rain falls for 46.6 days and collects up to 6.18" (157mm) of precipitation.
When it does not snow in Grand Terrace?
In Grand Terrace, California, snow does not fall in January, March through December.
How many days does it snow in Grand Terrace?
Throughout the year, in Grand Terrace, California, there are 0.1 snowfall days.
What is the most humid month in Grand Terrace?
February is the most humid month, with an average relative humidity of 53%.
When does it snow in Grand Terrace?
The only month with snowfall in Grand Terrace, California, is February.
When does it snow the most in Grand Terrace?
The month with the most snowfall days in Grand Terrace is February, when snow falls for 0.1 days.
When is Daylight Saving Time (DST) in Grand Terrace?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Grand Terrace, 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.
What is the driest month in Grand Terrace?
June is the month with the least rainfall in Grand Terrace. Rain falls for 1.2 days and accumulates 0.04" (1mm) of precipitation.
When are the longest days in Grand Terrace?
With an average of 14h and 24min of daylight, June has the longest days of the year in Grand Terrace, California.
What are the months with the highest UV index in Grand Terrace?
June through August, with an average maximum UV index of 7, are months with the highest UV index in Grand Terrace, California.
What month has the most sunshine in Grand Terrace?
July has the most sunshine of the year, with an average of 12.2h of sunshine.
What is the hottest time of year in Grand Terrace?
August is the month that records the highest temperatures in Grand Terrace, California, with averages ranging from a high of 91.9°F (33.3°C) to a low of 65.8°F (18.8°C).
What is the least humid month in Grand Terrace?
With an average relative humidity of 38%, August is the least humid month.
What are the coldest months in Grand Terrace?
Temperature records in Grand Terrace, California, mark December as the coldest month, with highs averaging 59.9°F (15.5°C) and lows at 43.7°F (6.5°C).
What is the wettest month in Grand Terrace?
The month with the most rainfall is December, when the rain falls for 6 days and typically aggregates up to 1.42" (36mm) of precipitation.
What is the month with the shortest days in Grand Terrace?
The month with the shortest days is December, with an average of 9h and 54min of daylight.
What is the month with the least sunshine in Grand Terrace?
The month with the least sunshine is December, with an average of 6.9h of sunshine.
When is the lowest UV index in Grand Terrace?
December is the month with the lowest UV index in Grand Terrace, with an average maximum UV index of 3.
Average temperature
Grand Terrace, CA
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (59.9°F).
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure
Grand Terrace, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.89"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.88"Hg - Average pressure in August:
29.87"Hg - Average pressure in September:
29.87"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Grand Terrace, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.5mph - Average wind speed in April:
6mph - Average wind speed in May:
6mph - Average wind speed in June:
5.5mph
- 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:
4.8mph - Average wind speed in November:
5.1mph - Average wind speed in December:
5.2mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity
Grand Terrace, CA
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (38%).
Average rainfall
Grand Terrace, CA
- Average rainfall in January:
0.91" - Average rainfall in February:
1.3" - Average rainfall in March:
0.71" - Average rainfall in April:
0.67" - Average rainfall in May:
0.16" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.08" - Average rainfall in September:
0.08" - Average rainfall in October:
0.12" - Average rainfall in November:
0.51" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Grand Terrace, CA
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
6.7 days - Average rainfall days in April:
5.9 days - Average rainfall days in May:
3.6 days - Average rainfall days in June:
1.2 days
- Average rainfall days in July:
3.1 days - Average rainfall days in August:
1.7 days - Average rainfall days in September:
1.9 days - Average rainfall days in October:
1.8 days - Average rainfall days in November:
3.4 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days
Grand Terrace, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 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 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Grand Terrace, CA
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
7h and 0min - Average sunshine in February:
7h and 0min - Average sunshine in March:
8h and 5min - Average sunshine in April:
11h and 2min - Average sunshine in May:
11h and 5min - Average sunshine in June:
12h and 1min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 1min - Average sunshine in September:
10h and 4min - Average sunshine in October:
9h and 0min - Average sunshine in November:
7h and 2min - Average sunshine in December:
6h 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: 6h and 54min).
Average sunshine days
Grand Terrace, CA
- Average sunshine days in January:
24.2 days - Average sunshine days in February:
21.7 days - Average sunshine days in March:
24.2 days - Average sunshine days in April:
23.3 days - Average sunshine days in May:
26.1 days - Average sunshine days in June:
27.9 days
- Average sunshine days in July:
25.8 days - Average sunshine days in August:
27.7 days - Average sunshine days in September:
26.7 days - Average sunshine days in October:
27.9 days - Average sunshine days in November:
25.7 days - Average sunshine days in December:
24.3 days
The months with the most sunshine days are June and October (27.9 days).
The month with the least sunshine days is February (21.7 days).
Average UV index
Grand Terrace, CA
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Grand Terrace, CA
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Grand Terrace, 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).
Grand Terrace, California, USA
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