July weather forecast
Stillwater, OK

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Weather in July

As the peak of summer falls in July, Stillwater experiences the hottest conditions of the year. The demand for shade and air conditioning is common this time of year. Slight relief from rain is expected compared to June, but the dry season is far from reality. The heat reaches its apex, where the average maximum temperature arrives at 93°F (33.9°C), the highest of the year.

Temperature

The warmest period in Stillwater tends to be July, when average temperatures fluctuate between a high of 93°F (33.9°C) and a low of 73°F (22.8°C).

Heat index

July's average heat index is appraised at a scorching 111.2°F (44°C). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In July, the average relative humidity is 64%.

Rainfall

In July, the rain falls for 12.6 days. Throughout July, 2.13" (54mm) of precipitation is accumulated. In Stillwater, during the entire year, the rain falls for 121.4 days and collects up to 25.28" (642mm) of precipitation.

Snowfall

In Stillwater, snow does not fall in April through October.

Daylight

In Stillwater, the average length of the day in July is 14h and 20min.
On the first day of July, sunrise is at 6:15 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:33 pm CDT.

Sunshine

In July, the average sunshine is 11.1h.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 7 in July transforms into this advice:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What month is the hottest?

July proves to be the warmest month, recording an average peak temperature of 93°F (33.9°C) and a minimum temperature of 73°F (22.8°C).

How hot does it get in July?

In Stillwater, 93°F (33.9°C) is the average high-temperature and 73°F (22.8°C) is the average low-temperature during July. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 111.2°F (44°C).

What is the average humidity in July?

In Stillwater, Oklahoma, the average relative humidity in July is 64%.

How many days does it rain in July?

In Stillwater, during July, the rain falls for 12.6 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in July?

In July, the average day length is 14h and 20min.

When are sunrise and sunset in July?

On the first day of July, sunrise is at 6:15 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:33 pm CDT.

How many hours of sunshine does Stillwater have in July?

The average sunshine duration in July is 11.1h.

What are the months with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 7.

What is the UV index intensity in July in Stillwater?

In Stillwater, the average daily maximum UV index in July is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
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 July
Stillwater, OK

Average temperature in July - Stillwater, OK
  • Average high temperature in July: 93°F

The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in July: 73°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in July
Stillwater, OK

Average pressure in July - Stillwater, OK
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in July
Stillwater, OK

Average wind speed in July - Stillwater, OK
  • Average wind speed in July: 8.4mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).

Average humidity in July
Stillwater, OK

Average humidity in July - Stillwater, OK
  • Average humidity in July: 64%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (62%).

Average rainfall in July
Stillwater, OK

Average rainfall in July - Stillwater, OK
  • Average rainfall in July: 2.13"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is December (0.98").

Average rainfall days in July
Stillwater, OK

Average rainfall days in July - Stillwater, OK
  • Average rainfall days in July: 12.6 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in July
Stillwater, OK

Average snowfall in July - Stillwater, OK
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Stillwater, OK

Average snowfall days in July - Stillwater, OK
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Stillwater, OK

Average daylight in July / Average sunshine in July - Stillwater, OK
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in July: 11h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in July
Stillwater, OK

Average sunshine days in July - Stillwater, OK
  • Average sunshine days in July: 16.2 days

The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (13.7 days).

Average UV index in July
Stillwater, OK

Average UV index in July - Stillwater, OK
  • Average UV index in July: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in July
Stillwater, OK

Average cloud cover in July - Stillwater, OK
  • Average cloud cover in July: 22

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in July
Stillwater, OK

Average visibility in July - Stillwater, OK
  • Average visibility in July: 6mi

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).

Stillwater, Oklahoma, USA

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