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Contents
- The climate of Fort Sumner
- The best time to visit Fort Sumner
- The worst time to visit Fort Sumner
- Spring weather in Fort Sumner
- Summer weather in Fort Sumner
- Autumn weather in Fort Sumner
- Winter weather in Fort Sumner
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Fort Sumner
As pinpointed by the Köppen climate classification, Fort Sumner, New Mexico displays a BSk climate type, that is, a mid-latitude steppe. This implies that the town experiences semi-arid conditions, characterized by moderate rainfall and substantial temperature variations throughout the year.
In essence, Fort Sumner presents a distinctive cycle of weather patterns. Temperature peaks recorded at 90°F (32.2°C) in July while bottoms out at around 30.6°F (-0.8°C) in January. As for the rainfall, a progressively escalating trend is observed from January's 0.35" (9mm) to July's peak at 1.61" (41mm), followed by a gradual decline towards the end of the year. Interestingly, while the least rainy months are January and December each with just 3.6 days of rainfall, the wettest period is noted in July, with rainfall experienced for an average of 12.5 days.
Snowfall, though minimal, is registered from November to March, with February recording the most snowfall, measured at 1.81" (46mm). A similar pattern recurs in the number of days with snowfall, with February experiencing the most days with snow, approximating to 3.2 days. This reveal a balance of conditions which is intriguing and unique to this part of New Mexico.
In essence, Fort Sumner presents a distinctive cycle of weather patterns. Temperature peaks recorded at 90°F (32.2°C) in July while bottoms out at around 30.6°F (-0.8°C) in January. As for the rainfall, a progressively escalating trend is observed from January's 0.35" (9mm) to July's peak at 1.61" (41mm), followed by a gradual decline towards the end of the year. Interestingly, while the least rainy months are January and December each with just 3.6 days of rainfall, the wettest period is noted in July, with rainfall experienced for an average of 12.5 days.
Snowfall, though minimal, is registered from November to March, with February recording the most snowfall, measured at 1.81" (46mm). A similar pattern recurs in the number of days with snowfall, with February experiencing the most days with snow, approximating to 3.2 days. This reveal a balance of conditions which is intriguing and unique to this part of New Mexico.
The best time to visit Fort Sumner
The timing for a Fort Sumner visit hinges significantly on one's weather preferences. Notwithstanding, April through to June emerge as the most favorable months, characterized by mild temperatures ranging from 64°F (17.8°C) to 90°F (32.2°C), moderate humidity, and minimal rainfall. These months also boast of a higher UV index of between 4 and 7, implying a brilliant sunshine experience - fair conditions for outdoor activities.
The worst time to visit Fort Sumner
The least favorable period to visit Fort Sumner is from November through to February. This period records lower temperatures, descending to as low as 30.6°F (-0.8°C), with snowfall to boot. Despite having a lower rainfall index, the short days, low average daylight hours, from 9.9 to 10.4 hours, coupled with lower sunshine hours from 7.1 to 7.3 hours, deem this period less appealing for travels or outdoor ventures.
Spring weather in Fort Sumner
The spring season at Fort Sumner, March through to May, is relatively warm and dry. The temperatures mount progressively from 64°F (17.8°C) in March to reach 78.1°F (25.6°C) in May. Rainfall measures from 0.43" (11mm) to 0.63" (16mm), suggesting a mildly wet spring climate. Notably, snowfall ceases in April, paving way for excellent weather for outdoor exploration.
Summer weather in Fort Sumner
Summers in Fort Sumner, cast from June to August, offer quite a balmy experience. Temperatures soar to highs of between 90°F (32.2°C) and 88.9°F (31.6°C). Along with the high temperatures, this period witnesses the peak of rainfall as well, with measurements extending from 1.02" (26mm) to 1.61" (41mm), accompanied by wet days peaking at 12.5 days in July. Despite the rainfall, Summer offers long daylight hours, from 13.4 to 14.4 hours, suffused with high sunshine hours, between 11.8 and 11.9 hours, enhancing the allure of summer activities.
Autumn weather in Fort Sumner
The autumn season in Fort Sumner is marked by declining temperatures and a significant fall in rainfall. Spanning between September and November, temperatures drop from 81.3°F (27.4°C) to 58.8°F (14.9°C) with a concurrent decline in rainfall from 1.06" (27mm) to 0.51" (13mm). Consequently, Autumn in Fort Sumner offers a pleasant and relatively dry climate, with lesser daylight hours, reducing from 12.4 to 10.4 hours.
Winter weather in Fort Sumner
Winters in Fort Sumner, encompassing December through to February, are brisk and moderately wet. Temperatures fall dramatically, ranging from 49.3°F (9.6°C) in December to a chilly 30.6°F (-0.8°C) in February. Rainfall lessens during this season, ranging from 0.51 to 0.35" (9mm). Despite the reduced daylight hours, stretching from 9.9 hours in December to 10.2 hours in February, the clear skies present sunlit days, still relatively high, from 7.1 to 7.3 hours, providing a touch of warmth despite the chilly weather.
Weather in January
January in Fort Sumner, New Mexico, mirror classic winter conditions, showcasing an atmospheric pressure around 30.12in. Compared to the following month, January has colder temperatures and fewer daylight hours. This month sets the trend for the initial quarter of the year wherein the city experiences a typical winter season. Weather in January »
Weather in February
The climatic shift in February represents a subtler transition towards the end of the winter season. The recorded snowfall in February is 1.81in, signifying dwindling instances of snow from the preceding month. The days noticeably lengthen, gifting more hours of sunshine relative to January. Weather in February »
Weather in March
March heralds the dawn of Spring in Fort Sumner, New Mexico, with jump to 30.96in of atmospheric pressure. An evident upward trend in temperatures and intensifying sunlight mark this transformation. March is replete with more rainfall days, paving the way for spring showers. Weather in March »
Weather in April
The weather in April is a testament to the full bloom of spring, extending the warming trend from March. There's only an insignificant 0.47in of snowfall that sets this month apart from the impending summer months. The daylight hours continue to elongate, allowing residents to enjoy more outdoor activities. Weather in April »
Weather in May
May acts as a precursor to the approaching summer as noticeable variations in temperature occur. The highest rainfall intensifies to 0.63in this month, outlining May as one of the months with the heaviest precipitation. The extended daylight hours and favorable temperatures attract outdoor enthusiasts. Weather in May »
Weather in June
June in Fort Sumner, New Mexico, is characterized by the beginning of summer, with the average lower temperature increasing to 65.3°F (18.5°C). The city experiences the longest days of the year this month. The relatively extended hours of sunshine and absence of snowfall are characteristic of June. Weather in June »
Weather in July
July is the peak of summer with July and August witnessing the maximum temperature of 90°F (32.2°C). The UV index also maximizes in July, which demands shade and hydration. Notably, July experiences the most rainfall days, adding a touch of precipitation to the otherwise dry and hot month. Weather in July »
Weather in August
The weather in August remains akin to July with maximum temperatures and relieving summer showers. The highest rainfall amount is 1.34in, characterizing August as hosting the peak monsoon. Despite the slightly shorter daylight hours, temperatures stay consistent with those of July. Weather in August »
Weather in September
In September, the summer heat in Fort Sumner, New Mexico, begins to wane, with a notable drop to 81.3°F (27.4°C) in the maximum temperature. The daylight hours gradually lessen, reflecting the imminent arrival of fall. As the rainfall frequency descends, the climate returns to drier conditions. Weather in September »
Weather in October
October marks the onset of fall in the city, and the reducing temperature becomes increasingly apparent. The first dip in temperature is marked with a relatively lower maximum temperature of 69.4°F (20.8°C), denoting early signs of incoming winter. Weather in October »
Weather in November
As November progresses, the cold weather intensifies, and the city experiences the first signs of impending winter. The average low temperature further drops to 38.7°F (3.7°C), suggesting a significant temperature decline. The city experiences minimal rainfall during the month, keeping the outdoors reasonably dry. Weather in November »
Weather in December
In December, Fort Sumner, New Mexico, fully embraces winter, with the temperature touching a low of 31.5°F (-0.3°C). The shortest daylight hours are observed during this month. The wind speed reaches its peak, contributing to the overall cold weather. Weather in December »
Updated: Aug 30, 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
What is the driest month?
January is the month with the least rainfall. Rain falls for 3.6 days and accumulates 0.35" (9mm) of precipitation.
How much does it rain?
In Fort Sumner, during the entire year, the rain falls for 78.6 days and collects up to 9.06" (230mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
How much does it snow?
Throughout the year, there are 13.6 snowfall days, and 8.19" (208mm) of snow is accumulated.
What are the months with the least sunshine?
January and December, with an average of 7.1h of sunshine, are months with the least sunshine.
When is Daylight Saving Time (DST)?
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.
What is the least humid month?
April is the least humid month, with an average relative humidity of 31%.
When it does not snow?
In Fort Sumner, snow does not fall in May through September.
What is the hottest time of year?
Fort Sumner witnesses its highest temperatures in June and July, reaching an average of 90°F (32.2°C).
When are the longest days?
June has the longest days of the year, with an average of 14h and 24min of daylight.
What month has the most sunshine in Fort Sumner?
June has the most sunshine of the year, with an average of 11.9h of sunshine.
What is the month with the highest UV index?
With an average maximum UV index of 7, June is the month with the highest UV index.
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 12.5 days and typically aggregates up to 1.61" (41mm) of precipitation.
What is the snowiest month?
November is the month with the most snowfall. Snow falls for 1.5 days and accumulates 1.85" (47mm) of snow.
What time of the year is the coldest?
Fort Sumner's December weather, marked by an average high temperature of 49.3°F (9.6°C) and an average low temperature of 31.5°F (-0.3°C), is the coldest in the year.
What is the most humid month?
December is the most humid month, with an average relative humidity of 52%.
What is the month with the shortest days in Fort Sumner?
With an average of 9h and 54min of daylight, December has the shortest days of the year.
When is the lowest UV index in Fort Sumner?
With an average maximum UV index of 2, December is the month with the lowest UV index.
Average temperature
Fort Sumner, NM
The warmest months (with the highest average high temperature) are June and July (90°F).
The month with the lowest average high temperature is December (49.3°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure
Fort Sumner, NM
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
29.96"Hg - Average pressure in April:
29.86"Hg - Average pressure in May:
29.87"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.86"Hg).
Average wind speed
Fort Sumner, NM
- Average wind speed in January:
11.5mph - Average wind speed in February:
12.1mph - Average wind speed in March:
12.7mph - Average wind speed in April:
12.9mph - Average wind speed in May:
12.2mph - Average wind speed in June:
11.6mph
- Average wind speed in July:
9.8mph - Average wind speed in August:
9mph - Average wind speed in September:
10.1mph - Average wind speed in October:
10.8mph - Average wind speed in November:
11.7mph - Average wind speed in December:
11.7mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9mph).
Average humidity
Fort Sumner, NM
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is April (31%).
Average rainfall
Fort Sumner, NM
- Average rainfall in January:
0.35" - Average rainfall in February:
0.39" - Average rainfall in March:
0.43" - Average rainfall in April:
0.39" - Average rainfall in May:
0.63" - Average rainfall in June:
1.02"
- Average rainfall in July:
1.61" - Average rainfall in August:
1.34" - Average rainfall in September:
1.06" - Average rainfall in October:
0.79" - Average rainfall in November:
0.51" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days
Fort Sumner, NM
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
5.5 days - Average rainfall days in April:
6.1 days - Average rainfall days in May:
7 days - Average rainfall days in June:
8.8 days
- Average rainfall days in July:
12.5 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
9.2 days - Average rainfall days in October:
5.2 days - Average rainfall days in November:
2.4 days - Average rainfall days in December:
3.2 days
The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is November (2.4 days).
Average snowfall
Fort Sumner, NM
The month with the highest snowfall is November (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Fort Sumner, NM
- Average snowfall days in January:
3.5 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
1.2 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 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 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
3.5 days
The months with the highest number of snowfall days are January and December (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Fort Sumner, NM
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
7h and 1min - Average sunshine in February:
7h and 1min - Average sunshine in March:
9h and 2min - Average sunshine in April:
11h and 2min - Average sunshine in May:
11h and 4min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 5min - Average sunshine in September:
10h and 5min - Average sunshine in October:
7h and 5min - Average sunshine in November:
7h and 2min - Average sunshine in December:
7h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days
Fort Sumner, NM
- Average sunshine days in January:
24.8 days - Average sunshine days in February:
22.2 days - Average sunshine days in March:
24.5 days - Average sunshine days in April:
22.3 days - Average sunshine days in May:
22.3 days - Average sunshine days in June:
18.1 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
24.3 days - Average sunshine days in November:
25.5 days - Average sunshine days in December:
24.6 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (14 days).
Average UV index
Fort Sumner, NM
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Fort Sumner, NM
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility
Fort Sumner, NM
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).
Fort Sumner, New Mexico, USA
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