Climate and monthly weather forecastGranite Bay, CA
Climate and monthly weather forecast
Weather in January
January in Granite Bay, California, is a refreshing winter month, with an average temperature varying between 55.9°F (13.3°C) and 40.1°F (4.5°C). The transition from December to January sees average high-temperatures adjusting to a mild 55.9°F (13.3°C), from a not significantly different 54°F (12.2°C). Weather in January »Weather in February
The last month of the winter, February, is another refreshing month in Granite Bay, California, with an average temperature varying between 57.7°F (14.3°C) and 40.5°F (4.7°C). The advent of February brings an average high-temperature of a still mild 57.7°F (14.3°C), exhibiting minor difference from the previous month. Weather in February »Weather in March
March, the first month of the spring in Granite Bay, is still a mild month, with an average temperature fluctuating between 42.8°F (6°C) and 60.6°F (15.9°C). With the advent of March, Granite Bay's high-temperatures adjust to a still moderate 60.6°F (15.9°C), closely aligning with the preceding month. Weather in March »Weather in April
April in Granite Bay, California, is a refreshing spring month, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 67.3°F (19.6°C). The embrace of April brings a minor uplift in the average high-temperature, shifting from a moderate 60.6°F (15.9°C) in March to a still refreshing 67.3°F (19.6°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Granite Bay, California, with an average temperature ranging between max 75.2°F (24°C) and min 50.5°F (10.3°C). The onset of May marks a slight increase in the average high-temperature, moving from a comfortable 67.3°F (19.6°C) in April to a warm 75.2°F (24°C). Weather in May »Weather in June
June, the first month of the summer in Granite Bay, is a hot month, with an average temperature fluctuating between 56.8°F (13.8°C) and 86.4°F (30.2°C). Granite Bay's weather in June shows a rise in the average high-temperature, moving up from May's warm 75.2°F (24°C) to a hot 86.4°F (30.2°C). Weather in June »Weather in July
July, like June, is a hot summer month in Granite Bay, California, with an average temperature ranging between max 93°F (33.9°C) and min 60.3°F (15.7°C). With its high average temperature of 93°F (33.9°C) and a low of 60.3°F (15.7°C), July is regarded as the warmest month. The heat index in July is evaluated at a torrid 95°F (35°C). Weather in July »Weather in August
August, the last month of the summer in Granite Bay, is also a hot month, with temperature in the range of an average high of 92.1°F (33.4°C) and an average low of 60.1°F (15.6°C). Granite Bay, California, sees the arrival of August with an average high-temperature of a still hot 92.1°F (33.4°C), indicating a subtle variation from July. Weather in August »Weather in September
The first month of the autumn, September, is still a hot month in Granite Bay, California, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 86.9°F (30.5°C). As Granite Bay steps into September, the average high-temperature is measured at a still hot 86.9°F (30.5°C), displaying minor differences from August's 92.1°F (33.4°C). Weather in September »Weather in October
October, like September, in Granite Bay, California, is a moderately hot autumn month, with an average temperature ranging between min 52.7°F (11.5°C) and max 75°F (23.9°C). Granite Bay's transition into October involves a shift in temperature, receding from a tropical 86.9°F (30.5°C) in September to a warm 75°F (23.9°C). Weather in October »Weather in November
The last month of the autumn, November, is another refreshing month in Granite Bay, California, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 45.3°F (7.4°C). November brings a decrease in the average high-temperature, falling from October's warm 75°F (23.9°C) to a comfortable 62.4°F (16.9°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Granite Bay, California, with an average temperature ranging between min 39.6°F (4.2°C) and max 54°F (12.2°C). Granite Bay records the coldest temperatures in December, averaging a high of 54°F (12.2°C) and a low of 39.6°F (4.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Granite Bay, CA
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (54°F).
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).
Average pressure
Granite Bay, CA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"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:
29.92"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
30"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
Granite Bay, CA
- Average wind speed in January:
4.7mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.3mph - Average wind speed in April:
5mph - Average wind speed in May:
4.8mph - Average wind speed in June:
4.6mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
4mph - Average wind speed in September:
4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.3mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is February (5.5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).
Average humidity
Granite Bay, CA
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).
Average rainfall
Granite Bay, CA
- Average rainfall in January:
3.35" - Average rainfall in February:
3.78" - Average rainfall in March:
4.33" - Average rainfall in April:
1.77" - Average rainfall in May:
1.26" - Average rainfall in June:
0.24"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.24" - Average rainfall in October:
1.18" - Average rainfall in November:
2.64" - Average rainfall in December:
3.78"
The wettest month (with the highest rainfall) is March (4.33").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Granite Bay, CA
- Average rainfall days in January:
9.9 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
10 days - Average rainfall days in May:
6.3 days - Average rainfall days in June:
2 days
- Average rainfall days in July:
1 days - Average rainfall days in August:
1.9 days - Average rainfall days in September:
2.6 days - Average rainfall days in October:
4.2 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is July (1 days).
Average snowfall
Granite Bay, CA
The months with the highest snowfall are February and December (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days
Granite Bay, 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:
0.2 days
The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Granite Bay, 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 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- 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 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:
6h and 0min - Average sunshine in February:
6h and 6min - Average sunshine in March:
7h and 36min - Average sunshine in April:
10h and 0min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 18min - Average sunshine in October:
7h and 12min - Average sunshine in November:
6h and 36min - Average sunshine in December:
5h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days
Granite Bay, CA
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
15.7 days - Average sunshine days in April:
18.6 days - Average sunshine days in May:
23.9 days - Average sunshine days in June:
27.3 days
- Average sunshine days in July:
29.2 days - Average sunshine days in August:
28.2 days - Average sunshine days in September:
26.6 days - Average sunshine days in October:
25.9 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is March (15.7 days).
Average UV index
Granite Bay, 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
Granite Bay, CA
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility
Granite Bay, 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).





