July weather forecastNiwot, CO
July
Weather in July
July, like June, in Niwot, Colorado, is another warm summer month, with an average temperature fluctuating between 59.2°F (15.1°C) and 85.6°F (29.8°C).Temperature
In Niwot, the average temperatures in July are the highest, with a peak at 85.6°F (29.8°C) and a low of 59.2°F (15.1°C).Heat index
July's heat index is appraised at a hot 86°F (30°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
The average relative humidity in July is 45%.Rainfall
In Niwot, during July, the rain falls for 16 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 105.4 rainfall days, and 10.43" (265mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In July, the average length of the day is 14h and 41min.On the first day of July, sunrise is at 5:35 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:15 pm MDT.
Sunshine
In July, the average sunshine is 11.8h.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in July transforms into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Niwot, CO
- Average high temperature in July: 85.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (39°F).
- Average low temperature in July: 59.2°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (19.9°F).
Average pressure in July
Niwot, CO
- Average pressure in July: 29.99"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in July
Niwot, CO
- Average wind speed in July: 5.7mph
The windiest months (with the highest average wind speed) are March and April (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.6mph).
Average humidity in July
Niwot, CO
- Average humidity in July: 45%
The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is August (42%).
Average rainfall in July
Niwot, CO
- Average rainfall in July: 1.54"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in July
Niwot, CO
- Average rainfall days in July: 16 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in July
Niwot, CO
- Average snowfall in July: 0"
The month with the highest snowfall is November (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Niwot, CO
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Niwot, CO
- Average daylight in July: 14h and 42min
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 July: 11h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days in July
Niwot, CO
- Average sunshine days in July: 9.3 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in July
Niwot, CO
- Average UV index in July: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Niwot, CO
- Average cloud cover in July: 19
The months with the most cloud cover are April and May (Cloud cover 26).
The months with the least cloud cover are June and September (Cloud cover 16).
Average visibility in July
Niwot, CO
- 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).








