Climate and monthly weather forecastKemmerer, WY
Climate and monthly weather forecast
The climate of Kemmerer
Kemmerer, Wyoming falls under the Köppen climate classification of Dfb. This translates to a humid continental climate with no dry season and a warm summer. This classification originates from the geographical location of Kemmerer in Wyoming, USA, where the city experiences distinct season variation with four different periods - spring, summer, autumn and winter.Throughout the year, Kemmerer's climate displays a wide range of temperatures and weather conditions. High temperatures fluctuate from 26.6°F (-3°C) in January to a peak of 79.3°F (26.3°C) in July. On the colder end of the spectrum, minimum temperatures reach a chilly 9.9°F (-12.3°C) in January and warm up to 55°F (12.8°C) in July. Relative humidity follows a similar pattern with high humidity in the winter months and lower levels during the summer, reaching from 87% in January and February down to 35% in August.
Rainfaill is noticeable throughout the year, with a slight spike in May where it reaches 2.01" (51mm). The drier periods align with the higher temperatures in the summer, achieving a low of 0.59" (15mm) in August. Simultaneously, Kemmerer is subjected to snowfall, from the onset of winter in December and through to May, with February producing the highest, 6.81" (173mm).
There is a noticeable difference in daylight hours throughout the year, ranging from a short 9.2 hours in December, to a long 15.2 hours in June. Correspondingly, sunshine hours also fluctuate with 5.7 hours in January, peaking to 11.8 hours from June to August.
The best time to visit Kemmerer
Considering the climatic variables, the optimal period to visit Kemmerer would be during the summer months, from June to August. During this time, the city experiences its warmest temperatures, with averages ranging from a comfortable 68.9°F (20.5°C) to 79.3°F (26.3°C). Rainfall is at its lowest, particularly in July and August, with precipitation levels falling below 0.7" (18mm). Also, the average daylight stretch to a total of approximately 15 hours, offering ample time to engage in outdoor activities.The worst time to visit Kemmerer
Conversely, the winter months, particularly from December to February, are less favorable for a visit. These months record the lowest temperatures, with the coldest month, January, ranges between 9.9°F (-12.3°C) to 26.6°F (-3°C). Intense precipitation occurs in the form of snowfall, totaling to 4.45" (113mm) in December, reaching almost 6" (152mm) in February. Additionally, the duration of daylight is noticeably shorter, with the shortest day in December amounting to just over 9 hours.Spring weather in Kemmerer
Spring marks a season of transition in Kemmerer. From March to May, the city witnesses a steady rise in temperature ranging from 36.5°F (2.5°C) to 57.6°F (14.2°C). The spring season also experiences a significant increase in rainfall with May being the wettest month at 2.01" (51mm). Snowfall decreases from 6.26" (159mm) in March to completely dissipate by May. The increase in daylight from 12 hours in March to almost 14.6 hours in May makes for longer and more enjoyable days.Summer weather in Kemmerer
Summer ushers in the warmest temperatures of the year, with averages fluctuating between 68.9°F (20.5°C) and 79.3°F (26.3°C). Rainfall modestly decreases, and the city sees no snowfall during this period. Daylight hours peak, especially in June, where residents enjoy more than 15 hours of light each day.Autumn weather in Kemmerer
In autumn, from September to November, Kemmerer braves a gradual decline in temperatures, averaging from 68.9°F (20.5°C) in the early part of September to 38.1°F (3.4°C) by November. Autumn rainfall averages around 0.78" (20mm) per month, with the first snow of the season appearing in November, totaling 3.46" (88mm). As the season progresses, the daylight hours reduce to around 9.8 hours by November.Winter weather in Kemmerer
From December to February, Kemmerer enters its coldest season. High winter temperatures shift from 25.7°F (-3.5°C) in December to 36.5°F (2.5°C) by February. Meanwhile, the lowest temperatures remain chilly, dropping to 9.9°F (-12.3°C) in January. The flurries of snow measure up to 4.84" (123mm) in December and escalate to 6.81" (173mm) in February. Decreasing sunlight signifies the onset of winter with daylight hours reduced to a minimum of 9.2 hours per day in December.Weather in January
Kemmerer experiences cold winters, and January is no exception. Coming off a colder December, it witnesses high humidity levels and consistent snowfall with up to 12.9 days of snow and maximum accumulation reaching 4.45" (113mm). Weather in January »Weather in February
Following January, February presents similar weather conditions but with increased precipitation and snowfall, reaching 5.83" (148mm) across 15.3 days. As one moves into the latter end of winter, the daylight hours slightly increase, hinting at the forthcoming spring. Weather in February »Weather in March
March signals the end of winter in Kemmerer, gradually transitioning into spring. It carries over some weather norms from February, including a higher number of daylight hours, reaching up to an average of 12 hours per day. Although the month is marked by decreasing snowfall which dwindles to 6.81" (173mm), the temperature does start to inch upwards from bitter winter lows. Weather in March »Weather in April
The arrival of April in Kemmerer brings noticeable warmth, alluding to the bloom of spring. A significant increase in temperatures is observed from the cooler March, and Kemmerer greets its residents with increased daylight up to 13.4 hours. Weather in April »Weather in May
May kickstarts the beginning of summer in Kemmerer, with significant increases in temperature compared to the cooler April. A more comfortable climate is ushered in, and the snowfall gives way to rain with precipitation peaking at 2.01" (51mm). Weather in May »Weather in June
The weather in Kemmerer takes a warm turn in June, marking the full onset of the summer season. The city experiences a significant change from May's already agreeable climate, showing a drastic increase in maximum temperature hitting 71.2°F (21.8°C). Weather in June »Weather in July
The peak of Kemmerer's summer arrives with July, showcasing the hottest temperatures of the year. Maximum temperature rises to 79.3°F (26.3°C), highlighting the warmth that graces the locale. More daylight permeates the city with average duration slightly dipping from June to around 14.9 hours. Weather in July »Weather in August
The grandeur of Kemmerer summer extends into August, introducing slightly lower temperatures from the previous month’s record high. There is an observable increase in rainfall from as low as 0.63" (16mm) in July to 0.59" (15mm) in August, but it remains relatively dry. Weather in August »Weather in September
The arrival of September announces the start of fall in Kemmerer, reflecting pleasant and cooler temperatures compared to the hotter August. The transition from summer to fall becomes evident with rainfall slightly increasing to 0.83" (21mm) and the temperatures beginning to fall. Weather in September »Weather in October
October brings in a notable change in Kemmerer's weather, ushering in the full force of fall. The temperature drops significantly compared to warmer September, making way for more established fall conditions. The incidence of rainfall remains consistent with September, standing at around 0.83" (21mm). Weather in October »Weather in November
As winter draws closer, November sees lower temperatures in Kemmerer compared to October. The transition into colder months becomes more apparent with the first signs of snowfall, accumulating to about 3.46" (88mm) over 9.1 days. Weather in November »Weather in December
Concluding the year, December welcomes the stark winter season in Kemmerer, with average temperatures dropping further from those in November. The volume of snowfall dramatically increases to an impressive 4.84" (123mm) over 13.5 days, marking the upcoming winter month of January. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Kemmerer, WY
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure
Kemmerer, WY
- Average pressure in January:
30.29"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.24"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Kemmerer, WY
- Average wind speed in January:
8.1mph - Average wind speed in February:
9.2mph - Average wind speed in March:
8.5mph - Average wind speed in April:
9.8mph - Average wind speed in May:
9.1mph - Average wind speed in June:
9.2mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.8mph - Average wind speed in September:
8.3mph - Average wind speed in October:
8.9mph - Average wind speed in November:
8.5mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity
Kemmerer, WY
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).
Average rainfall
Kemmerer, WY
- Average rainfall in January:
0.75" - Average rainfall in February:
0.98" - Average rainfall in March:
1.06" - Average rainfall in April:
1.38" - Average rainfall in May:
2.01" - Average rainfall in June:
0.91"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.59" - Average rainfall in September:
0.83" - Average rainfall in October:
0.83" - Average rainfall in November:
0.67" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").
Average rainfall days
Kemmerer, WY
- Average rainfall days in January:
7 days - Average rainfall days in February:
5 days - Average rainfall days in March:
8.6 days - Average rainfall days in April:
10.9 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
9.3 days
- Average rainfall days in July:
7.5 days - Average rainfall days in August:
8.1 days - Average rainfall days in September:
8.6 days - Average rainfall days in October:
7 days - Average rainfall days in November:
5.1 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).
Average snowfall
Kemmerer, WY
- Average snowfall in January:
4.45" - Average snowfall in February:
5.83" - Average snowfall in March:
6.81" - Average snowfall in April:
6.26" - Average snowfall in May:
3.7" - Average snowfall in June:
0.55"
The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days
Kemmerer, WY
- Average snowfall days in January:
12.9 days - Average snowfall days in February:
15.3 days - Average snowfall days in March:
14.7 days - Average snowfall days in April:
11.5 days - Average snowfall days in May:
5.1 days - Average snowfall days in June:
0.9 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.7 days - Average snowfall days in October:
5.2 days - Average snowfall days in November:
9.1 days - Average snowfall days in December:
13.5 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Kemmerer, WY
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 42min - Average sunshine in February:
6h and 0min - Average sunshine in March:
8h and 0min - Average sunshine in April:
9h and 54min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 42min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 30min - Average sunshine in October:
7h and 12min - Average sunshine in November:
6h and 42min - Average sunshine in December:
5h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days
Kemmerer, WY
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
12.1 days - Average sunshine days in April:
9.7 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
17.3 days
- Average sunshine days in July:
19.3 days - Average sunshine days in August:
18.7 days - Average sunshine days in September:
19.3 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).
Average UV index
Kemmerer, WY
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover
Kemmerer, WY
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility
Kemmerer, WY
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





