Climate and monthly weather forecastBystrom, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Bystrom, California, is another refreshing winter month, with an average temperature ranging between max 57.7°F (14.3°C) and min 41.9°F (5.5°C). The average high-temperature is a still mild 57.7°F (14.3°C) in January, hardly different from the 55.6°F (13.1°C) recorded in December. Weather in January »Weather in February
February, the last month of the winter in Bystrom, is a refreshing month, with an average temperature varying between 42.3°F (5.7°C) and 61.2°F (16.2°C). In the transition from January to February, Bystrom reports an average high-temperature of an enjoyable 61.2°F (16.2°C), indicating a close resemblance to the prior month. Weather in February »Weather in March
The first month of the spring, March, is still a refreshing month in Bystrom, California, with temperature in the range of an average high of 65.7°F (18.7°C) and an average low of 44.2°F (6.8°C). The average high-temperature during March is a still refreshing 65.7°F (18.7°C), almost matching the conditions of the preceding month. Weather in March »Weather in April
April is a pleasant spring month in Bystrom, California, with an average temperature ranging between min 47.7°F (8.7°C) and max 72.1°F (22.3°C). Bystrom experiences a minor temperature shift with the start of April, with average high-temperatures moving from a comfortable 65.7°F (18.7°C) in March to an agreeable 72.1°F (22.3°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Bystrom, California, with an average temperature varying between 52.7°F (11.5°C) and 80.1°F (26.7°C). With the onset of May, Bystrom's weather sees a minor temperature rise, transitioning from a pleasant 72.1°F (22.3°C) in April to a moderately hot 80.1°F (26.7°C). Weather in May »Weather in June
June, the first month of the summer in Bystrom, is a tropical month, with an average temperature varying between 91°F (32.8°C) and 59.2°F (15.1°C). The average high-temperature increases in June, moving from a warm 80.1°F (26.7°C) in May to a hot 91°F (32.8°C). Weather in June »Weather in July
July is a sweltering summer month in Bystrom, California, with an average temperature fluctuating between 97.7°F (36.5°C) and 62.1°F (16.7°C). July is the warmest month, with the temperature often reaching an average high of 97.7°F (36.5°C) and an average low of 62.1°F (16.7°C). Weather in July »Weather in August
The last month of the summer, August, is also a fiery hot month in Bystrom, California, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 96.4°F (35.8°C). The commencement of August notes an average high-temperature of a still very hot 96.4°F (35.8°C), exhibiting little difference from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Bystrom, California, with temperature in the range of an average high of 90.9°F (32.7°C) and an average low of 59.9°F (15.5°C). With the arrival of September, Bystrom notices a mild change in the average high-temperature, sliding from August's very hot 96.4°F (35.8°C) to a tropical 90.9°F (32.7°C). Weather in September »Weather in October
October, like September, in Bystrom, California, is a moderately hot autumn month, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 54.5°F (12.5°C). The arrival of October corresponds with a shift in temperature, down from a tropical 90.9°F (32.7°C) in September to a warm 77.9°F (25.5°C). Weather in October »Weather in November
November, the last month of the autumn in Bystrom, is another comfortable month, with an average temperature fluctuating between 65.3°F (18.5°C) and 46.9°F (8.3°C). November's onset brings a reduction in the average high-temperature, from a moderately hot 77.9°F (25.5°C) in October to an enjoyable 65.3°F (18.5°C). Weather in November »Weather in December
December, the first month of the winter in Bystrom, is still a refreshing month, with an average temperature fluctuating between 41.9°F (5.5°C) and 55.6°F (13.1°C). With its high average temperature of 55.6°F (13.1°C) and a low of 41.9°F (5.5°C), December is regarded as the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Bystrom, CA
The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (55.6°F).
The month with the highest average low temperature is July (62.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.9°F).
Average pressure
Bystrom, 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
Bystrom, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
6.3mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.5mph - Average wind speed in May:
6.7mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.5mph - Average wind speed in September:
5.8mph - Average wind speed in October:
5.7mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.7mph
The windiest month (with the highest average wind speed) is June (7.3mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).
Average humidity
Bystrom, CA
The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).
Average rainfall
Bystrom, CA
- Average rainfall in January:
0.75" - Average rainfall in February:
0.94" - Average rainfall in March:
1.3" - Average rainfall in April:
0.67" - Average rainfall in May:
0.39" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.35" - Average rainfall in November:
0.67" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is March (1.3").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Bystrom, CA
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
7.4 days - Average rainfall days in May:
3.6 days - Average rainfall days in June:
1 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
0.9 days - Average rainfall days in September:
1.6 days - Average rainfall days in October:
2.5 days - Average rainfall days in November:
5.2 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight / Average sunshine
Bystrom, 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 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 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 18min - Average sunshine in February:
6h and 18min - Average sunshine in March:
8h and 12min - Average sunshine in April:
10h and 30min - Average sunshine in May:
11h and 18min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 30min - Average sunshine in October:
7h and 24min - Average sunshine in November:
6h and 42min - Average sunshine in December:
6h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days
Bystrom, CA
- Average sunshine days in January:
24.1 days - Average sunshine days in February:
20.8 days - Average sunshine days in March:
19.6 days - Average sunshine days in April:
21.7 days - Average sunshine days in May:
26.7 days - Average sunshine days in June:
28.4 days
- Average sunshine days in July:
28.3 days - Average sunshine days in August:
29.2 days - Average sunshine days in September:
27.1 days - Average sunshine days in October:
27.7 days - Average sunshine days in November:
24.1 days - Average sunshine days in December:
22 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (19.6 days).
Average UV index
Bystrom, 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
Bystrom, CA
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility
Bystrom, 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).





