Climate and monthly weather forecastGallup, NM
Climate and monthly weather forecast
The climate of Gallup
Gallup, New Mexico, resides within the confines of the BSk Köppen climate classification, known more commonly as a mid-latitude steppe climate. This particular climate typology points toward moderate temperature swings throughout the year, paired with relatively low levels of precipitation. The annual weather cycle in Gallup ranges from extreme highs of 82.4°F (28°C) in July to extreme lows of 21.7°F (-5.7°C) recorded in January. This temperature oscillation accompanies a shift in relative humidity, with a high of 70% in January and a minimal value of 23% in June.Throughout the year, Gallup Stays relatively dry with the annual highest rainfall of 1.06" (27mm) exhibited in July. Still, significant rainfall can be noted in August and September, with 0.94" (24mm) and 0.91" (23mm), respectively. On the other hand, the months of May and June witness the least rain, with a near-identical accumulation of 0.24" (6mm). Interestingly, while July showcases the most rain, it is not the month with the most rainfall days. This title is claimed by July, with 12.9 days of rainfall.
The wind in Gallup maintains a constant presence throughout the year, with the windiest month in April, presenting average speeds of 11.2mph (18km/h). Conversely, July experiences the calmest conditions with wind speeds averaging at 7.3mph (11.7km/h). The city's sunshine hours are fairly consistent, ranging from 11.9 hours per day in June to 6.5 hours per day in December and January. Nevertheless, in terms of sunny days, July suffers a drop to only 14.4 days, in contrast to June, which enjoys 25.1 sunny days.
The best time to visit Gallup
Considering pleasant temperatures, low rainfall, and high sunshine hours, the best months to visit Gallup are May and June. During these months, the city experiences warm temperatures that range from 60.6°F (15.9°C) to 68.9°F (20.5°C). Furthermore, the rainfall during these months is at its annual low, with only 0.24" (6mm) of precipitation. Coupled with excessive sunshine hours reaching up to 11.4 hours per day, visitors are blessed with plenty of opportunities to explore outdoor activities.The worst time to visit Gallup
Contrarily, January is the worst time to visit Gallup due to chilly temperatures and high odds of snowfall. The temperature hovers from 21.7°F (-5.7°C) to 38.7°F (3.7°C), making it the coldest month of the year. Moreover, the city witnesses a relatively high level of snowfall, up to 2.91" (74mm) in January. These cold and snowy conditions can often hinder travel and outdoor activities.Spring weather in Gallup
Spring in Gallup brings with it a gradual warming of temperatures from 38.7°F (3.7°C) in March to 60.6°F (15.9°C) by the end of May. It also marks the beginning of the city's dry period, with May seeing the annual lowest rainfall of just 0.24" (6mm) over 4.5 days. Despite the low rainfall, the months of April and May experience the windiest conditions, with average wind speeds reaching 11.2mph (18km/h) and 10.8mph (17.4km/h) mustering gusts of 16.1mph (25.9km/h) and 15.6mph (25.1km/h).Summer weather in Gallup
During the summer months of June through August, the temperature heats up to highs of 82.4°F (28°C) in July. Humidity also rises in the summer, with July witnessing a relative humidity of 41%. Unexpectedly, despite being one of the hottest months, July sees the most rainfall with 1.06" (27mm), spread over 12.9 days on average. Yet, it is worth noting that June is the month with the longest sunlight exposure - up to 14.5 hours per day.Autumn weather in Gallup
Throughout the Autumn months of September, October, and November, Gallup experiences a drop in temperatures, with an average high of 74.7°F (23.7°C) in September to a low of 51.4°F (10.8°C) by November. The Autumn season also brings a reduction in rainfall, from 0.91" (23mm) in September to 0.39" (10mm) in November. Visitors to Gallup during Autumn will benefit from moderate sunshine hours, which decline from 10.8 hours to 7.2 hours per day over the course of the season.Winter weather in Gallup
During the Winter, Gallup witnesses considerably colder conditions with temperatures ranging between 22.6°F (-5.2°C) and 38.7°F (3.7°C) in the coldest month, January. The city also experiences frequent snowfall during the Winter, with the highest measurement of 2.91" (74mm) occurring in January, over 6.3 days. Despite the lower temperatures and harsh conditions, Winter still offers about 6.5 hours of sunshine during its shortest day.Weather in January
Cold is the operative word for January in Gallup, New Mexico, given that temperatures can drop down to as frigid as 21.7°F (-5.7°C). Additionally, there is also the possibility of witnessing snowfall, as white flakes blanket the city during this month. Weather in January »Weather in February
The trend of cold weather continues into February, though there is a slight rise in temperature, the chill in the air certainly does not disappear. The daylight hours increase somewhat, providing a hint of the approaching spring. Weather in February »Weather in March
March indicates the arrival of spring in Gallup, New Mexico, and as a result, the averages dictate an increase in temperatures and decline in snowfall. It is common to experience a positive fluctuation in temperature from 32.9°F (0.5°C) to much warmer. Weather in March »Weather in April
April brings forth a noticeable change, with temperatures climbing towards the average high of 60.6°F (15.9°C), marking the true advent of spring. The city of Gallup enters an astoundingly beautiful phase as the area begins to bloom with life. Weather in April »Weather in May
May is a significant transition month in Gallup’s weather patterns, as temperatures continue to soar up to 68.9°F (20.5°C), offering warm days. Subsequently, the weather continues to dry up, marking a continuous decrement in rainfall and virtually no snowfall. Weather in May »Weather in June
June marks the beginning of summer, with Gallup warming up to a cozy 82°F (27.8°C). High levels of heat coupled with lower precipitation, make this period dryer. Although this might sound unpleasant for some, it’s offset by the fact that June also has the longest daylight hours of the year. Weather in June »Weather in July
July is typically Gallup’s hottest month, with the temperature possibly reaching a sizzling 82.4°F (28°C). However, this heat is often tempered by the arrival of monsoons, leading to higher rainfall than in previous months. It's a mix of dry heat during the day and sporadic showers, providing an occasional respite to the inhabitants. Weather in July »Weather in August
August weather carries forward the high temperature, with an average high of around 80.6°F (27°C), from its predecessor, making Gallup still feel substantially summer-like. Despite this, there is a gradual fall in temperature as August progresses, coupled with reasonably high levels of rainfall. Weather in August »Weather in September
September showcases a fairly significant drop in temperature, with a high average of around 74.7°F (23.7°C), a sure sign that autumn is near. The daylight hours start decreasing, therefore hinting at the upcoming changes in the climate. Weather in September »Weather in October
October fully immerses Gallup in autumn's embrace, with lower temperatures and shorter days. The environment becomes more rejuvenating as temperatures continue to drop, marking it a favorable period for tourists. Though rainfall occurs sparingly, it fails to overshadow the charm of this weather. Weather in October »Weather in November
While November is still a fall month in Gallup, it also denotes the upcoming winter, as temperatures start dropping substantially. Snowfall begins to reappear, painting the city into a winter wonderland as the month progresses. Weather in November »Weather in December
December marks the arrival of winter in its full force in Gallup, with the city experiencing temperatures dipping as low as 22.6°F (-5.2°C). Both daylight and sunshine hours reach the low ebb of the year. Consequently, snowfall occurrence surges dramatically, making December the most snowy month. Weather in December »Updated: Feb 13, 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
In Gallup, January is known for its average lowest temperatures, reaching a high of 38.7°F (3.7°C) and a low of 21.7°F (-5.7°C).
With an average relative humidity of 70%, January is the most humid month in Gallup.
Throughout the year, in Gallup, there are 69.2 rainfall days, and 6.69" (170mm) of precipitation is accumulated.
Months with snowfall in Gallup are January through May, October through December.
The month with the most snowfall is January, when snow falls for 6.3 days and typically aggregates up to 2.91" (74mm) of snow.
Throughout the year, there are 24.1 snowfall days, and 10.91" (277mm) of snow is accumulated.
The months with the least sunshine are January and December, with an average of 6.5h of sunshine.
The months with the lowest UV index in Gallup, New Mexico, are January, February, November and December, with an average maximum UV index of 2.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Gallup, 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 months with the least rainfall in Gallup are May and June Rain falls for 4.5 days and accumulates 0.24" (6mm) of rain.
With an average relative humidity of 23%, June is the least humid month in Gallup.
June through September are months without snowfall in Gallup, New Mexico.
With an average of 14h and 30min of daylight, June has the longest days of the year in Gallup.
The month with the most sunshine is June, with an average of 11.9h of sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
In Gallup, July is the warmest month, with temperatures averaging a high of 82.4°F (28°C) and a low of 62.1°F (16.7°C).
The month with the most rainfall in Gallup is July, when the rain falls for 12.9 days and typically aggregates up to 1.06" (27mm) of precipitation.
With an average of 9h and 48min of daylight, December has the shortest days of the year in Gallup.
Average temperature
Gallup, NM
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (38.7°F).
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure
Gallup, NM
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Gallup, NM
- Average wind speed in January:
6.8mph - Average wind speed in February:
8.7mph - Average wind speed in March:
9.9mph - Average wind speed in April:
11.2mph - Average wind speed in May:
10.8mph - Average wind speed in June:
10.1mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
6.9mph - Average wind speed in September:
7.6mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.2mph - Average wind speed in December:
7.7mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is January (6.8mph).
Average humidity
Gallup, NM
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is June (23%).
Average rainfall
Gallup, NM
- Average rainfall in January:
0.55" - Average rainfall in February:
0.59" - Average rainfall in March:
0.47" - Average rainfall in April:
0.39" - Average rainfall in May:
0.24" - Average rainfall in June:
0.24"
- Average rainfall in July:
1.06" - Average rainfall in August:
0.94" - Average rainfall in September:
0.91" - Average rainfall in October:
0.35" - Average rainfall in November:
0.39" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is July (1.06").
The driest months (with the least rainfall) are May and June (0.24").
Average rainfall days
Gallup, NM
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
5.8 days - Average rainfall days in April:
4.8 days - Average rainfall days in May:
4.5 days - Average rainfall days in June:
3.4 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
11.6 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
5.2 days - Average rainfall days in November:
3.1 days - Average rainfall days in December:
3.7 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is February (2.6 days).
Average snowfall
Gallup, NM
- Average snowfall in January:
2.91" - Average snowfall in February:
2.56" - Average snowfall in March:
0.67" - Average snowfall in April:
0.71" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is January (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Gallup, NM
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
5.5 days - Average snowfall days in March:
2 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.3 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 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
2 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Gallup, NM
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
7h and 18min - Average sunshine in March:
9h and 6min - Average sunshine in April:
10h and 54min - Average sunshine in May:
11h and 24min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 48min - Average sunshine in October:
7h and 24min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 30min
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: 6h and 30min).
Average sunshine days
Gallup, NM
- Average sunshine days in January:
22.4 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
23.1 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
24.5 days - Average sunshine days in June:
25.1 days
- Average sunshine days in July:
14.4 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
24.1 days - Average sunshine days in November:
24.4 days - Average sunshine days in December:
22.4 days
The month with the most sunshine days is June (25.1 days).
The month with the least sunshine days is July (14.4 days).
Average UV index
Gallup, NM
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
Gallup, NM
The month with the most cloud cover is January (Cloud cover 28).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility
Gallup, NM
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
