Climate and monthly weather forecastSierra Vista, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Sierra Vista, California, is another mild winter month, with an average temperature fluctuating between 42.4°F (5.8°C) and 58.8°F (14.9°C). The high-temperature average in January for Sierra Vista is a still moderate 58.8°F (14.9°C), staying closely aligned with December's conditions. Weather in January »Weather in February
February, the last month of the winter in Sierra Vista, is a comfortable month, with an average temperature varying between 61.3°F (16.3°C) and 42.4°F (5.8°C). Entering February, the average high-temperature is recorded at a still refreshing 61.3°F (16.3°C), exhibiting a minimal shift from January's 58.8°F (14.9°C). Weather in February »Weather in March
The first month of the spring, March, is still a refreshing month in Sierra Vista, California, with an average temperature fluctuating between 66.7°F (19.3°C) and 45.7°F (7.6°C). Observing a minor shift, the average high-temperature during March adjusts from February's enjoyable 61.3°F (16.3°C) to a still comfortable 66.7°F (19.3°C). Weather in March »Weather in April
April in Sierra Vista, California, is a moderately hot spring month, with an average temperature fluctuating between 73.4°F (23°C) and 49.6°F (9.8°C). As Sierra Vista transitions into April, the average high-temperature is observed to slightly rise from an enjoyable 66.7°F (19.3°C) in March to a warm 73.4°F (23°C). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Sierra Vista, California, with an average temperature varying between 81.5°F (27.5°C) and 55.4°F (13°C). The start of May is characterized by a subtle increase in the average high-temperature, transitioning from 73.4°F (23°C) in April to a still warm 81.5°F (27.5°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Sierra Vista, California, with an average temperature ranging between min 61.7°F (16.5°C) and max 92.7°F (33.7°C). Sierra Vista sees an increase in average high-temperatures during June, moving from a warm 81.5°F (27.5°C) in May to a hot 92.7°F (33.7°C). Weather in June »Weather in July
July is a torrid summer month in Sierra Vista, California, with an average temperature fluctuating between 100°F (37.8°C) and 65.8°F (18.8°C). July is the warmest month, with the temperature often reaching an average high of 100°F (37.8°C) and an average low of 65.8°F (18.8°C). Weather in July »Weather in August
The last month of the summer, August, is another very hot month in Sierra Vista, California, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 98.2°F (36.8°C). Sierra Vista experiences an average high-temperature of a still torrid 98.2°F (36.8°C) with the onset of August, subtly varied from July's 100°F (37.8°C). Weather in August »Weather in September
September, the first month of the autumn in Sierra Vista, is still a tropical month, with temperature in the range of an average high of 92.1°F (33.4°C) and an average low of 62.6°F (17°C). A modest decline in the average high-temperature is seen during September, decreasing from a torrid 98.2°F (36.8°C) in August to a hot 92.1°F (33.4°C). Weather in September »Weather in October
October, like September, in Sierra Vista, California, is another warm autumn month, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 55.4°F (13°C). Sierra Vista in October experiences a subtle temperature decline, with average high-temperatures reducing from a tropical 92.1°F (33.4°C) in September to a warm 79°F (26.1°C). Weather in October »Weather in November
The last month of the autumn, November, is another comfortable month in Sierra Vista, California, with an average temperature varying between 47.7°F (8.7°C) and 66.2°F (19°C). November brings a decrease in the average high-temperature, falling from October's moderately hot 79°F (26.1°C) to a comfortable 66.2°F (19°C). Weather in November »Weather in December
December, the first month of the winter in Sierra Vista, is still a mild month, with temperature in the range of an average high of 56.3°F (13.5°C) and an average low of 41.9°F (5.5°C). Sierra Vista reaches its lowest average temperatures in December, measuring 56.3°F (13.5°C) at the peak and 41.9°F (5.5°C) at the lowest. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Sierra Vista, CA
The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is December (56.3°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure
Sierra Vista, 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:
30.01"Hg - Average pressure in May:
29.95"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
Sierra Vista, CA
- Average wind speed in January:
4.8mph - Average wind speed in February:
5.7mph - Average wind speed in March:
6mph - Average wind speed in April:
6.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
6.8mph - Average wind speed in September:
5.9mph - Average wind speed in October:
5.3mph - Average wind speed in November:
4.7mph - Average wind speed in December:
5mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity
Sierra Vista, CA
The month with the highest relative humidity is January (68%).
The month with the lowest relative humidity is July (31%).
Average rainfall
Sierra Vista, CA
- Average rainfall in January:
1.02" - Average rainfall in February:
1.26" - Average rainfall in March:
1.46" - Average rainfall in April:
0.63" - Average rainfall in May:
0.47" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.39" - Average rainfall in November:
0.75" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days
Sierra Vista, CA
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
8.6 days - Average rainfall days in April:
6.8 days - Average rainfall days in May:
3.3 days - Average rainfall days in June:
0.8 days
- Average rainfall days in July:
2 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
1.5 days - Average rainfall days in October:
2.7 days - Average rainfall days in November:
4.6 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (0.8 days).
Average daylight / Average sunshine
Sierra Vista, CA
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 54min - 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 24min - Average daylight in August:
13h and 30min - 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 42min
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 42min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
6h and 24min - Average sunshine in March:
8h and 24min - Average sunshine in April:
10h and 42min - Average sunshine in May:
11h and 30min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 12min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 24min - Average sunshine in October:
7h and 36min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 12min
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 12min).
Average sunshine days
Sierra Vista, CA
- Average sunshine days in January:
24.5 days - Average sunshine days in February:
21.5 days - Average sunshine days in March:
22 days - Average sunshine days in April:
23.3 days - Average sunshine days in May:
27 days - Average sunshine days in June:
28.8 days
- Average sunshine days in July:
27.8 days - Average sunshine days in August:
28.5 days - Average sunshine days in September:
27.2 days - Average sunshine days in October:
27.2 days - Average sunshine days in November:
25.1 days - Average sunshine days in December:
23.3 days
The month with the most sunshine days is June (28.8 days).
The month with the least sunshine days is February (21.5 days).
Average UV index
Sierra Vista, 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
Sierra Vista, CA
The months with the most cloud cover are March and December (Cloud cover 30).
The months with the least cloud cover are July, August and September (Cloud cover 5).
Average visibility
Sierra Vista, 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).





