Climate and monthly weather forecastCajon Junction, CA
Climate and monthly weather forecast
Weather in January
January is a refreshing winter month in Cajon Junction, California, with an average temperature ranging between min 40.6°F (4.8°C) and max 56.8°F (13.8°C). The start of January sees the average high-temperature at a moderate 56.8°F (13.8°C), showing little difference from December's 54.5°F (12.5°C). Weather in January »Weather in February
The last month of the winter, February, is another mild month in Cajon Junction, California, with an average temperature fluctuating between 40.6°F (4.8°C) and 57.6°F (14.2°C). With the start of February, Cajon Junction measures an average high-temperature of a still mild 57.6°F (14.2°C), not significantly differing from January's 56.8°F (13.8°C). Weather in February »Weather in March
March, the first month of the spring in Cajon Junction, is a refreshing month, with an average temperature fluctuating between 62.6°F (17°C) and 43.7°F (6.5°C). March begins with an average high-temperature of a still refreshing 62.6°F (17°C), reflecting close similarity to the preceding month. Weather in March »Weather in April
April is a pleasant spring month in Cajon Junction, California, with an average temperature ranging between min 46.9°F (8.3°C) and max 68.5°F (20.3°C). With the transition into April, Cajon Junction experiences a subtle uplift in average high-temperatures, adjusting from a refreshing 62.6°F (17°C) in March to an agreeable 68.5°F (20.3°C). Weather in April »Weather in May
May, the last month of the spring in Cajon Junction, is a moderately hot month, with an average temperature ranging between min 52°F (11.1°C) and max 74.5°F (23.6°C). The onset of May marks a slight increase in the average high-temperature, moving from a pleasant 68.5°F (20.3°C) in April to a warm 74.5°F (23.6°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Cajon Junction, California, with an average temperature fluctuating between 59.4°F (15.2°C) and 84.7°F (29.3°C). June's onset witnesses a shift in the average high-temperature, moving from 74.5°F (23.6°C) in May to a still warm 84.7°F (29.3°C). Weather in June »Weather in July
July in Cajon Junction, California, is a tropical summer month, with an average temperature ranging between min 65.8°F (18.8°C) and max 89.8°F (32.1°C). Upon the beginning of July, Cajon Junction's high-temperatures register at a hot 89.8°F (32.1°C), closely mirroring the preceding month. Weather in July »Weather in August
August, the last month of the summer in Cajon Junction, is another tropical month, with an average temperature ranging between min 66.7°F (19.3°C) and max 90.3°F (32.4°C). August is the warmest month, with the temperature often reaching an average high of 90.3°F (32.4°C) and an average low of 66.7°F (19.3°C). Weather in August »Weather in September
September, the first month of the autumn in Cajon Junction, is still a warm month, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 62.1°F (16.7°C). August's transformation into September witnesses an average high-temperature of a moderately hot 85.1°F (29.5°C), noting a minor change from the preceding month. Weather in September »Weather in October
October, like September, in Cajon Junction, California, is another warm autumn month, with an average temperature ranging between max 73.4°F (23°C) and min 53.2°F (11.8°C). In October, the average high-temperature goes from 85.1°F (29.5°C) in September to a still warm 73.4°F (23°C). Weather in October »Weather in November
November, the last month of the autumn in Cajon Junction, is also an enjoyable month, with an average temperature ranging between min 45.5°F (7.5°C) and max 63.5°F (17.5°C). In Cajon Junction, entering November brings a temperature decrement, reducing from October's moderately hot 73.4°F (23°C) to a refreshing 63.5°F (17.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Cajon Junction, California, with an average temperature varying between 39.4°F (4.1°C) and 54.5°F (12.5°C). December, with its average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 39.4°F (4.1°C), holds the record as the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Cajon Junction, CA
The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is December (54.5°F).
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).
Average pressure
Cajon Junction, CA
- Average pressure in January:
30.11"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:
29.94"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Cajon Junction, CA
- Average wind speed in January:
6.3mph - Average wind speed in February:
6.9mph - Average wind speed in March:
7.3mph - Average wind speed in April:
8.1mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.1mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.3mph - Average wind speed in December:
6.3mph
The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is September (5.8mph).
Average humidity
Cajon Junction, CA
The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is August (33%).
Average rainfall
Cajon Junction, CA
- Average rainfall in January:
0.2" - Average rainfall in February:
0.39" - Average rainfall in March:
0.28" - Average rainfall in April:
0.28" - Average rainfall in May:
0.08" - Average rainfall in June:
0"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.16" - Average rainfall in September:
0.12" - Average rainfall in October:
0.12" - Average rainfall in November:
0.24" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is December (0.47").
The driest month (with the least rainfall) is June (0").
Average rainfall days
Cajon Junction, CA
- Average rainfall days in January:
2.6 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
4.9 days - Average rainfall days in April:
3.4 days - Average rainfall days in May:
2.4 days - Average rainfall days in June:
0.7 days
- Average rainfall days in July:
3.5 days - Average rainfall days in August:
2.1 days - Average rainfall days in September:
1.9 days - Average rainfall days in October:
2.1 days - Average rainfall days in November:
2 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is March (4.9 days).
The month with the least rainy days is June (0.7 days).
Average snowfall
Cajon Junction, CA
The month with the highest snowfall is December (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Cajon Junction, CA
- Average snowfall days in January:
1 days - Average snowfall days in February:
2.4 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0.1 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:
0.6 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Cajon Junction, CA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
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:
9h and 0min - Average sunshine in April:
11h and 30min - Average sunshine in May:
11h and 54min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 48min - Average sunshine in October:
8h and 48min - Average sunshine in November:
7h and 18min - Average sunshine in December:
6h and 54min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days
Cajon Junction, CA
- Average sunshine days in January:
26.6 days - Average sunshine days in February:
23.6 days - Average sunshine days in March:
25.4 days - Average sunshine days in April:
26.2 days - Average sunshine days in May:
28 days - Average sunshine days in June:
29 days
- Average sunshine days in July:
25.6 days - Average sunshine days in August:
27.1 days - Average sunshine days in September:
26.8 days - Average sunshine days in October:
28.5 days - Average sunshine days in November:
26.9 days - Average sunshine days in December:
25.6 days
The month with the most sunshine days is June (29 days).
The month with the least sunshine days is February (23.6 days).
Average UV index
Cajon Junction, CA
The months with the highest UV index are 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
Cajon Junction, CA
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Cajon Junction, 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).





