Climate and monthly weather forecastCairnbrook, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Cairnbrook, Pennsylvania, is a freezing cold winter month, with temperature in the range of an average low of 18.7°F (-7.4°C) and an average high of 30.9°F (-0.6°C). January is the month when Cairnbrook sees the lowest average temperatures, with a high of 30.9°F (-0.6°C) and a low of 18.7°F (-7.4°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in Cairnbrook, Pennsylvania, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 21.4°F (-5.9°C). The onset of February manifests an average high-temperature of an icy 35.2°F (1.8°C), demonstrating a minor variation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Cairnbrook, Pennsylvania, with an average temperature ranging between max 44.2°F (6.8°C) and min 28.8°F (-1.8°C). March's onset witnesses a shift in the average high-temperature, moving from a cold 35.2°F (1.8°C) in February to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April in Cairnbrook, Pennsylvania, is a moderate spring month, with an average temperature fluctuating between 56.8°F (13.8°C) and 38.7°F (3.7°C). As Cairnbrook transitions into April, a rise in the average high-temperature is observed, moving from a chilly 44.2°F (6.8°C) in March to a refreshing 56.8°F (13.8°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Cairnbrook, Pennsylvania, with an average temperature ranging between min 48.7°F (9.3°C) and max 67.8°F (19.9°C). Cairnbrook in May sees a temperature change, with average high-temperatures moving from a refreshing 56.8°F (13.8°C) in April to a comfortable 67.8°F (19.9°C). Weather in May »Weather in June
June, the first month of the summer in Cairnbrook, is a warm month, with an average temperature ranging between max 75.2°F (24°C) and min 55.2°F (12.9°C). The onset of June brings a minor temperature shift, with the average high-temperature moving from a comfortable 67.8°F (19.9°C) in May to a moderately hot 75.2°F (24°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Cairnbrook, Pennsylvania, with an average temperature fluctuating between 80.1°F (26.7°C) and 58.8°F (14.9°C). The month of July sees the highest average temperatures, reaching 80.1°F (26.7°C) at the peak and 58.8°F (14.9°C) at the low. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Cairnbrook, Pennsylvania, with an average temperature ranging between max 77.9°F (25.5°C) and min 57°F (13.9°C). The introduction of August sees an average high-temperature of a still moderately hot 77.9°F (25.5°C), hardly deviating from July. Weather in August »Weather in September
September, the first month of the autumn in Cairnbrook, is still a pleasant month, with an average temperature fluctuating between 71.6°F (22°C) and 52.5°F (11.4°C). The advent of September brings a slight shift in average high-temperature, moving from a warm 77.9°F (25.5°C) in August to a pleasant 71.6°F (22°C). Weather in September »Weather in October
October, the same as September, in Cairnbrook, Pennsylvania, is another refreshing autumn month, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 58.6°F (14.8°C). With October's arrival, Cairnbrook's weather changes as the average high-temperature falls from a pleasant 71.6°F (22°C) in September to a moderate 58.6°F (14.8°C). Weather in October »Weather in November
November, the last month of the autumn in Cairnbrook, is another chilly month, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 46.4°F (8°C). November implies a gentle temperature shift, with average high-temperatures reducing from October's moderate 58.6°F (14.8°C) to a frosty 46.4°F (8°C). Weather in November »Weather in December
December, the first month of the winter in Cairnbrook, is also an icy month, with temperature in the range of an average low of 26.1°F (-3.3°C) and an average high of 36.5°F (2.5°C). The shift from November to December involves a decrease in the average high-temperature, from a frosty 46.4°F (8°C) to a wintry 36.5°F (2.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Cairnbrook, PA
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (30.9°F).
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure
Cairnbrook, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Cairnbrook, PA
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8.3mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Cairnbrook, PA
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).
Average rainfall
Cairnbrook, PA
- Average rainfall in January:
2.4" - Average rainfall in February:
2.52" - Average rainfall in March:
2.68" - Average rainfall in April:
3.11" - Average rainfall in May:
3.03" - Average rainfall in June:
2.6"
- Average rainfall in July:
3.11" - Average rainfall in August:
2.4" - Average rainfall in September:
2.09" - Average rainfall in October:
2.68" - Average rainfall in November:
1.65" - Average rainfall in December:
2.76"
The wettest months (with the highest rainfall) are April and July (3.11").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days
Cairnbrook, PA
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
16.9 days - Average rainfall days in May:
19.9 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
19.3 days - Average rainfall days in August:
17.6 days - Average rainfall days in September:
15.1 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is May (19.9 days).
The months with the least rainy days are February and November (8.9 days).
Average snowfall
Cairnbrook, PA
- Average snowfall in January:
6.97" - Average snowfall in February:
6.46" - Average snowfall in March:
5.98" - Average snowfall in April:
1.38" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is January (6.97").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Cairnbrook, PA
- Average snowfall days in January:
14.2 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
10.2 days - Average snowfall days in April:
3.5 days - Average snowfall days in May:
0.6 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:
1.5 days - Average snowfall days in November:
5 days - Average snowfall days in December:
11.5 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Cairnbrook, PA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
3h and 12min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 6min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Cairnbrook, PA
- Average sunshine days in January:
9.9 days - Average sunshine days in February:
10.5 days - Average sunshine days in March:
10.9 days - Average sunshine days in April:
10 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
11 days - Average sunshine days in September:
13.3 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
15.7 days - Average sunshine days in December:
10.9 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is May (9.3 days).
Average UV index
Cairnbrook, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Cairnbrook, PA
The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility
Cairnbrook, PA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





