Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The arrival of August sees an average high-temperature of a still warm 78.4°F (25.8°C), hardly diverging from July's 81°F (27.2°C). Throughout August, Saint Johns encounters an average temperature drop to a mild 57.7°F (14.3°C).Humidity
In Saint Johns, the average relative humidity in August is 80%.Rainfall
In August, in Saint Johns, the rain falls for 10.2 days. Throughout August, 1.06" (27mm) of precipitation is accumulated. In Saint Johns, during the entire year, the rain falls for 111.5 days and collects up to 11.34" (288mm) of precipitation.Snowfall
June through September are months without snowfall in Saint Johns.Daylight
In August, the average length of the day is 13h and 46min.On the first day of August, sunrise is at 6:00 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:37 pm EDT.
Sunshine
In Saint Johns, the average sunshine in August is 9.4h.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 5 in August translates into this advice:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the temperature in August in Saint Johns?
What is the average humidity in August in Saint Johns?
How much does it rain in Saint Johns in August?
When it does not snow in Saint Johns?
How many hours of daylight does Saint Johns have in August?
When is the sunrise / sunset in August in Saint Johns?
How long on average sun shines in August in Saint Johns?
How high is the UV index in August in Saint Johns?
Average temperature in August
Saint Johns, PA
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in August: 57.7°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Saint Johns, PA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Saint Johns, PA
- Average wind speed in August: 5.1mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in August
Saint Johns, PA
- Average humidity in August: 80%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (78%).
Average rainfall in August
Saint Johns, PA
- Average rainfall in August: 1.06"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in August
Saint Johns, PA
- Average rainfall days in August: 10.2 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in August
Saint Johns, PA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Saint Johns, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Saint Johns, PA
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in August
Saint Johns, PA
- Average sunshine days in August: 18.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in August
Saint Johns, PA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in August
Saint Johns, PA
- Average cloud cover in August: 40
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in August
Saint Johns, PA
- Average visibility in August: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Saint Johns, Pennsylvania, USA
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