August weather forecast
Monticello, PA

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Weather in August

August, the last month of the summer in Monticello, is another warm month, with an average temperature ranging between min 57.7°F (14.3°C) and max 78.6°F (25.9°C).

Temperature

The average high-temperature during August is a still moderately hot 78.6°F (25.9°C), almost matching the conditions of the preceding month. During August nights, Monticello witnesses a consistent average temperature of 57.7°F (14.3°C).

Humidity

The average relative humidity in August is 80%.

Rainfall

In Monticello, in August, it is raining for 15.1 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 166.3 rainfall days, and 31.06" (789mm) of precipitation is accumulated.

Snowfall

In Monticello, Pennsylvania, snow does not fall in June through September.

Daylight

In Monticello, the average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:38 pm EDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: During August, 5 as the daily maximum UV index converts into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

The high-temperature, in August, in Monticello, records 78.6°F (25.9°C), while the low-temperature is 57.7°F (14.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in July is evaluated at 87.8°F (31°C).

What is the average humidity in August?

In Monticello, Pennsylvania, the average relative humidity in August is 80%.

How much does it rain in August?

In Monticello, in August, during 15.1 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow in Monticello?

In Monticello, snow does not fall in June through September.

What is the average length of the day in August?

In August, the average day length is 13h and 46min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:01 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:38 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.8h.

When is the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Monticello, PA

Average temperature in August - Monticello, PA
  • Average high temperature in August: 78.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°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 (19°F).

Average pressure in August
Monticello, PA

Average pressure in August - Monticello, 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
Monticello, PA

Average wind speed in August - Monticello, PA
  • Average wind speed in August: 4.8mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in August
Monticello, PA

Average humidity in August - Monticello, PA
  • Average humidity in August: 80%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in August
Monticello, PA

Average rainfall in August - Monticello, PA
  • Average rainfall in August: 2.68"

The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in August
Monticello, PA

Average rainfall days in August - Monticello, PA
  • Average rainfall days in August: 15.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in August
Monticello, PA

Average snowfall in August - Monticello, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Monticello, PA

Average snowfall days in August - Monticello, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Monticello, PA

Average daylight in August / Average sunshine in August - Monticello, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in August
Monticello, PA

Average sunshine days in August - Monticello, PA
  • Average sunshine days in August: 13.6 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in August
Monticello, PA

Average UV index in August - Monticello, PA
  • Average UV index in August: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Monticello, PA

Average cloud cover in August - Monticello, PA
  • Average cloud cover in August: 37

The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in August
Monticello, PA

Average visibility in August - Monticello, 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).

Monticello, Pennsylvania, USA

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