Climate and monthly weather forecastGuernsey, WY
Climate and monthly weather forecast
The climate of Guernsey
Situating Guernsey, Wyoming, in the USA reveals a mid-latitude steppe climate, according to the Köppen climate classification system. Indicators of this specific climate, labeled as BSk, present a distinct landscape with low and often spread out precipitation, accompanied with the presence of some vegetation, yet less than that found in the true desert areas.Throughout the year, Guernsey exhibits variable weather conditions. The highest monthly average temperatures range from 36.7°F (2.6°C) in January to 86.9°F (30.5°C) in July. Respectively, the lowest fluctuate between 21.6°F (-5.8°C) in February and 62.8°F (17.1°C) in July. Indicating a wide temperature range and significant temperature changes within the year.
Considering the rainfall, it's observed that there is no dry month entirely. The rainfall figures vary between 0.35" (9mm) in January and 1.97" (50mm) in May. The fluctuations not only illustrate the BSk climate, but also demonstrate how Guernsey's location, in the heartland of America, accommodates occasional storm fronts.
Cloud cover fluctuates between 16% to 31%, which means Guernsey enjoys above-average amounts of sunshine year-round. The average wind speed remains relatively constant throughout, from 8.6mph (13.8km/h) in August to 15mph (24.1km/h) in January, all of which add to the unique steppe weather conditions of Guernsey, Wyoming.
The best time to visit Guernsey
With all respective climate factors integrated, the period between late spring to early fall, from May to September, represents the most comfortable time to visit Guernsey. Between these months, average daily high temperatures stay comfortably between 59.4°F (15.2°C) and up to 86.9°F (30.5°C). Additionally, daylight hours peak during this period, extending to 15.2 hours per day in the peak of summer.Amid this period, the relative humidity maintains lower than at any other time of the year, varying from 42% to 54% which contributes to the comfortable weather conditions. Furthermore, visitor can appreciate the wind speed, maintaining just under 10mph (16.1km/h).
The worst time to visit Guernsey
Visitors may find the winter months from December to February less appealing due to cold, snowy conditions. Average daily low temperatures drop to as low as 21.6°F (-5.8°C) in February. The snowfall level ranges from 1.93" (49mm) in December to 3.46" (88mm) in February, while there is an increased number of snowfall days during the same period ranging from 7 days in December to 8.3 days in February.Spring weather in Guernsey
Spring in Guernsey, from March to May, sees a steady rise in temperature with average highs ranging from 49.3°F (9.6°C) in March to 65.3°F (18.5°C) in May. Accompanying this temperature increase, rainfall pattern shifts between 1.02" (26mm) in March to a higher level of 1.97" (50mm) in May. The longer daylight hours, from 12 hours in March to 14.6 hours in May, along with rising sunshine hours from 8.7 hours in March to 10.7 hours in May, create a pleasant environment.Summer weather in Guernsey
Summer weather in Guernsey, from June through August, showcases the highest temperatures of the year. The average maximum temperature reaches up to 86.9°F (30.5°C) in July, while the minimum stays pleasantly above 55.9°F (13.3°C). Although rainfall decreases to range between 1.1" (28mm) in July and 0.75" (19mm) both in August and June, there is no severe dry condition due to the steppe climate.Autumn weather in Guernsey
During the Autumn season from September through November, Guernsey experiences a noticeable temperature drop. The average temperatures reach from 77.2°F (25.1°C) in September to 47.3°F (8.5°C) in November. A mild rainfall period is experienced during these months ranging from 0.75" (19mm) in September to 0.67" (17mm) in November.Winter weather in Guernsey
The winter season, December through February, brings the coldest temperatures with averages between 35.1°F (1.7°C) in December and dropping to 21.6°F (-5.8°C) in February. Snowfall is prevalent during the winter months with accumulations ranging from 1.93" (49mm) in December to 3.46" (88mm) in February. Despite this, Guernsey retains a moderate number of daylight hours ranging from 9.5 hours in December to 10.6 hours in February, following a typical BSk climate pattern.Weather in January
January in Guernsey, Wyoming is characterized by cold temperatures with an average high of 36.7°F (2.6°C) and a low of 22.8°F (-5.1°C), along with seven snowfall days indicating wintery conditions. The city begins the year shrouded in snow with the mercury plunging to the lowest of the year. Weather in January »Weather in February
February brings a slight escalation in the frigid temperature as compared to January, with average lows reaching 21.6°F (-5.8°C) and highs of around 37.2°F (2.9°C) while also witnessing approximately 3.46" (88mm) of snowfall. Weather in February »Weather in March
The weather in March in Guernsey, Wyoming, makes a significant leap towards spring with a high of 49.3°F (9.6°C) and a low of 32°F (0°C). Notably, rainfall almost doubles from the previous month's average, recording 1.02" (26mm) with a drop in snowfall to 3.86" (98mm). Weather in March »Weather in April
April in Guernsey, Wyoming experiences an encouraging uplift in temperature, with humidity standing at 55%, rendering an enhanced sense of warmth. Although showers become more frequent in April compared to March, the snowfall decreases significantly, highlighting the seasonal transition. Weather in April »Weather in May
As summer sets foot, May in Guernsey, Wyoming has a substantial surge in temperature, with a rise in humidity and sunshine hours, ensuring a sunny disposition. The city thaws considerably from the frosty winter months, embracing the warmth of the oncoming summer. Weather in May »Weather in June
June in Guernsey, Wyoming, announces the arrival of summer with average high temperatures saw at 80.2°F (26.8°C). It pales the rainfall days of the previous month, the city basks in the seasonal warmth, and June brings the longest days, making it a perfect time to enjoy the clear blue skies and luscious green vistas. Weather in June »Weather in July
July in Guernsey, Wyoming, is the peak of summer with the average temperature reaching a scorching high of 86.9°F (30.5°C). It is the warmest month with practically no snowfall, thus ending the transition from the freezing winter months. Weather in July »Weather in August
August in Guernsey, Wyoming continues the summer trend with average high temperatures around 85.6°F (29.8°C) and a slight decrease in rainfall compared to July. The month keeps the momentum of the summer warmth, albeit with a gradual decrease in sunshine hours and daylight, indicating the subtle shift towards autumn. Weather in August »Weather in September
September marks the onset of fall in Guernsey, Wyoming, with the average high temperature dropping to 77.2°F (25.1°C) from August's peak, accompanied by a mild increase in rainfall. This shift in weather initiates the transformation of green landscapes into varying shades of autumn hues. Weather in September »Weather in October
October in Guernsey, Wyoming, experiences a noticeable dip in temperature, with average highs and lows cooling down to 59.4°F (15.2°C) and 40.5°F (4.7°C) respectively. Compared to September, October introduces the chill of the upcoming winter season, as leafy canopies start shedding their fall foliage. Weather in October »Weather in November
November in Guernsey, Wyoming, witnesses a further decline in temperature and the beginning of snowfall, reflecting the advent of winter. The striking contrast between the mild autumn and the approaching harsh winter is prominent in November. Weather in November »Weather in December
December brings full-fledged winter back to Guernsey, Wyoming, with an average temperature high and low reaching 35.1°F (1.7°C) and 21.6°F (-5.8°C) respectively, and recording significant snowfall. The drastic temperature dip highlights the severity of the winter weather. Weather in December »Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the least rainfall is January, when the rain falls for 3.6 days and typically collects 0.35" (9mm) of precipitation.
Throughout the year, there are 90.8 rainfall days, and 11.57" (294mm) of precipitation is accumulated.
Months with snowfall are January through May, September through December.
In Guernsey, during the entire year, snow falls for 46.4 days and aggregates up to 27.13" (689mm) of snow.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The most humid month is February, with an average relative humidity of 66%.
February and December, with an average of 6.6h of sunshine, are months with the least sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The month with the most snowfall is April, when snow falls for 5.1 days and typically aggregates up to 4.45" (113mm) of snow.
May is the month with the most rainfall. Rain falls for 12.7 days and accumulates 1.97" (50mm) of precipitation.
In Guernsey, snow does not fall in June through August.
The month with the longest days is June, with an average of 15h and 12min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
In Guernsey, the peak temperatures are generally noted in July, averaging a high of 86.9°F (30.5°C) and a low of 62.8°F (17.1°C).
With an average of 11.8h of sunshine, July has the most sunshine of the year in Guernsey.
August is the least humid month, with an average relative humidity of 39%.
In Guernsey, the average lowest temperatures are observed in December, with a high of 35.1°F (1.7°C) and a low of 21.6°F (-5.8°C).
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Guernsey, WY
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is December (35.1°F).
The month with the highest average low temperature is July (62.8°F).
The coldest months (with the lowest average low temperature) are February and December (21.6°F).
Average pressure
Guernsey, WY
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
29.98"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.89"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Guernsey, WY
- Average wind speed in January:
15mph - Average wind speed in February:
13.2mph - Average wind speed in March:
12.2mph - Average wind speed in April:
11.6mph - Average wind speed in May:
9.8mph - Average wind speed in June:
9.4mph
- Average wind speed in July:
8.8mph - Average wind speed in August:
8.6mph - Average wind speed in September:
9.6mph - Average wind speed in October:
11.6mph - Average wind speed in November:
13mph - Average wind speed in December:
14.1mph
The windiest month (with the highest average wind speed) is January (15mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity
Guernsey, WY
The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is August (39%).
Average rainfall
Guernsey, WY
- Average rainfall in January:
0.35" - Average rainfall in February:
0.51" - Average rainfall in March:
1.02" - Average rainfall in April:
1.81" - Average rainfall in May:
1.97" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.1" - Average rainfall in August:
0.75" - Average rainfall in September:
0.75" - Average rainfall in October:
0.91" - Average rainfall in November:
0.67" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days
Guernsey, WY
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
7.9 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
12.7 days - Average rainfall days in June:
10.4 days
- Average rainfall days in July:
9.8 days - Average rainfall days in August:
9.1 days - Average rainfall days in September:
7.4 days - Average rainfall days in October:
5.8 days - Average rainfall days in November:
4.3 days - Average rainfall days in December:
3.8 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (3.6 days).
Average snowfall
Guernsey, WY
- Average snowfall in January:
1.93" - Average snowfall in February:
3.46" - Average snowfall in March:
3.86" - Average snowfall in April:
4.45" - Average snowfall in May:
2.99" - Average snowfall in June:
0"
The month with the highest snowfall is April (4.45").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Guernsey, WY
- Average snowfall days in January:
7 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
5.1 days - Average snowfall days in May:
2.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.3 days - Average snowfall days in October:
3.7 days - Average snowfall days in November:
6 days - Average snowfall days in December:
8.1 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Guernsey, WY
- Average daylight in January:
9h and 30min - 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 0min - 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:
6h and 48min - Average sunshine in February:
6h and 36min - Average sunshine in March:
8h and 42min - Average sunshine in April:
10h and 18min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 36min - Average sunshine in October:
7h and 12min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days
Guernsey, WY
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
14.9 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
16.7 days - Average sunshine days in August:
17.5 days - Average sunshine days in September:
20.1 days - Average sunshine days in October:
21.1 days - Average sunshine days in November:
21 days - Average sunshine days in December:
21.4 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is April (14.5 days).
Average UV index
Guernsey, WY
The months with the highest UV index are June, 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
Guernsey, WY
The month with the most cloud cover is April (Cloud cover 31).
The months with the least cloud cover are August and September (Cloud cover 16).
Average visibility
Guernsey, WY
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).
