July weather forecast
Lyons, CO

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Weather in July

July, the same as June, is a moderately hot summer month in Lyons, Colorado, with an average temperature ranging between min 54.5°F (12.5°C) and max 80.6°F (27°C).

Temperature

July proves to be the warmest month, recording an average peak temperature of 80.6°F (27°C) and a minimum temperature of 54.5°F (12.5°C).

Heat index

Throughout July, the heat index is estimated at 80.6°F (27°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In July, the average relative humidity is 49%.

Rainfall

In July, the rain falls for 20.4 days. Throughout July, 2.68" (68mm) of precipitation is accumulated. In Lyons, during the entire year, the rain falls for 134.2 days and collects up to 17.13" (435mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in July is 14h and 42min.
On the first day of July in Lyons, sunrise is at 5:35 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:16 pm MDT.

Sunshine

June and July, with an average of 11.7h of sunshine, are months with the most sunshine.

UV index

June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 5 in July, converts into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What time of the year is the hottest?

Lyons's warmest weather arrives in July, when temperatures average a high of 80.6°F (27°C) and a low of 54.5°F (12.5°C).

What is the average July temperature?

In Lyons, 80.6°F (27°C) is the average high-temperature and 54.5°F (12.5°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 80.6°F (27°C).

What is the average humidity in July in Lyons?

In July, the average relative humidity is 49%.

How much does it rain in July?

In Lyons, during July, the rain falls for 20.4 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Lyons have in July?

In July, the average day length is 14h and 42min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:35 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:16 pm MDT.

What is the month with the most sunshine?

June and July, with an average of 11.7h of sunshine, are months with the most sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 11.7h.

When is the highest UV index?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Lyons, CO

Average temperature in July - Lyons, CO
  • Average high temperature in July: 80.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is December (35.4°F).

  • Average low temperature in July: 54.5°F

The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is December (17.6°F).

Average pressure in July
Lyons, CO

Average pressure in July - Lyons, CO
  • Average pressure in July: 30"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
Lyons, CO

Average wind speed in July - Lyons, CO
  • Average wind speed in July: 5.6mph

The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in July
Lyons, CO

Average humidity in July - Lyons, CO
  • Average humidity in July: 49%

The month with the highest relative humidity is February (71%).
The months with the lowest relative humidity are June, August and September (46%).

Average rainfall in July
Lyons, CO

Average rainfall in July - Lyons, CO
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in July
Lyons, CO

Average rainfall days in July - Lyons, CO
  • Average rainfall days in July: 20.4 days

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is November (3.6 days).

Average snowfall in July
Lyons, CO

Average snowfall in July - Lyons, CO
  • Average snowfall in July: 0"

The month with the highest snowfall is April (8.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Lyons, CO

Average snowfall days in July - Lyons, CO
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Lyons, CO

Average daylight in July / Average sunshine in July - Lyons, CO
  • Average daylight in July: 14h and 4min

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 4min

The months with the most sunshine are June and July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in July
Lyons, CO

Average sunshine days in July - Lyons, CO
  • Average sunshine days in July: 7.3 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in July
Lyons, CO

Average UV index in July - Lyons, CO
  • Average UV index in July: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in July
Lyons, CO

Average cloud cover in July - Lyons, CO
  • Average cloud cover in July: 21

The months with the most cloud cover are April and May (Cloud cover 28).
The months with the least cloud cover are June and September (Cloud cover 17).

Average visibility in July
Lyons, CO

Average visibility in July - Lyons, 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).

Lyons, Colorado, USA

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