Climate and monthly weather forecastGrand Island, NE
Climate and monthly weather forecast
The climate of Grand Island
Grand Island, Nebraska, nestles snugly within the geographical confines of the continent's enormous interior, a fitting environment for the prevailing Köppen climate classification - Dfa. This climate category represents a humid continental climate, implying no dry season and a hot summer.By virtue of this classification, Grand Island witnesses moderate rainfall throughout the year, peaking in the month of May at 3.27" (83mm) and then spiralling down to the lowest measure at 0.51" (13mm) in January. The region also experiences light snowfall, with the highest flurry recorded in December at 3.23" (82mm) and is entirely absent during the hot summer months from June to September.
Throughout the year, relative humidity remains fairly stable, ranging from a 78% peak in January to a dip to 61% in October. The temperature displays more notable disparities between winter lows of 19°F (-7.2°C) in January and the summer highs that climb to 86.7°F (30.4°C) in July. The incrementing daylight hours mirror this pattern, spanning from 9.3 hours in December and elongating to 15.1 hours during June's summer brightness.
A distinctive element of Grand Island's weather is the persistent visibility that remains constant at a distance of 6 miles throughout the year. This weather consistency offset by fluctuations in other weather elements enhances the city’s appeal.
The best time to visit Grand Island
Visitors dreaming of warm days should plan a visit to Grand Island between May and July when daily temperatures peak at a comfortably warm range from 70.5°F (21.4°C) to 86.7°F (30.4°C). This period also hosts the longest daylight hours that extend from 14.5 to 15.1 hours, providing ample time for sightseeing. Despite a higher amount of rainfall, it does not hinder this period's charm, as the city's relative humidity lingers around a comfortable 68 to 70%, avoiding an excessively moist ambience.Simultaneously, sun-loving visitors favour May to July, combining ten or more hours of daily sunshine, intensifying through the three months. The clever blend of moderate temperatures and abundant sunshine makes this the prime time for those who look forward to exploring the outdoors.
The worst time to visit Grand Island
Tourists seeking to escape harsh temperatures should strictly steer away from Grand Island during January and February when temperatures dip between 19°F (-7.2°C) to 21.6°F (-5.8°C). Though the amount of rainfall is the lowest of the year during this period, the chilly weather might be a deterrent for outdoor activities. Also, the daylight hours are noticeably shorter during these months, from 9.6 hours to 10.7 hours.[2]Spring weather in Grand Island
Summer weather in Grand Island
Summers in Grand Island flaunt a temperature range from 70.5°F (21.4°C) to 86.7°F (30.4°C), involving the months of June, July, and August. Although rainfall is relatively lower than spring, a small decline can be witnessed from 2.64" (67mm) in June to 1.85" (47mm) by August. Summer's magic is in the extended daylight of 14.5 to 15.1 hours per day, painting an alluring picture for outdoor enjoyment.Autumn weather in Grand Island
Embracing September, October, and November, the autumn brews a brew of falling temperatures from 78.3°F (25.7°C) to 36.1°F (2.3°C). The rainfall dwindles from 1.34" (34mm) to 0.67" (17mm), along with the receding daylight hours that draw back from 11.1 to 9.9 hours. This cooling period allows visitors to enjoy the autumn foliage in a comfortable climate.Winter weather in Grand Island
As November takes its leave, winter meanders into Grand Island. December and January witness the lowest temperatures varying from 22.1°F (-5.5°C) to 19°F (-7.2°C). Snowfall makes its most significant appearance in December with 3.23" (82mm), adding a white layer to the city. The daylight lasts for 9.3 to 9.6 hours, providing just enough brightness for those who enjoy cold weather aesthetics.Weather in January
The start of the year in Grand Island, Nebraska, brings cold temperatures and frequent frost, typical of harsh winters in this region. The frigid conditions prevail with an average high temperature of 33.4°F (0.8°C) and a low of 19°F (-7.2°C), creating a silent white cityscape often blanketed in a misty haze. Weather in January »Weather in February
Compared to January, February in Grand Island, Nebraska, offers a slight elevation in temperatures. Yet, winter's lingering dominance manifests in sporadic snowfall, leaving pure white snow on rooftops and lawns. This month corresponds to an intermittent rise in rainfall, though it remains a far cry from drenching spring showers. Weather in February »Weather in March
March represents the onset of meteorological spring in Grand Island, Nebraska. The promises of warmer days begin to hold true as temperatures incrementally rise. With the mercury pushing upward, the city witnesses a revival of greenery and floral blooms, underscoring the rejuvenating spirit of spring. Weather in March »Weather in April
April sees a distinct shift in Grand Island, Nebraska's weather. The city casts off its winter cloak, welcoming warmer temperatures, bursting blossoms, and the vibrant chirps of returning birds. There's a twofold increase in rainfall from March to April, registering 1.93" (49mm), signalling the onset of the 'April showers' phase. Weather in April »Weather in May
May stands out as a pivotal month in Grand Island, Nebraska -- a metaphoric gateway between spring and summer. The otherwise unpredictable weather patterns stabilize with more predicable warm, sunny days, ever-increasing daylight hours and pleasant breezes. Weather in May »Weather in June
June is the official herald of summer in Grand Island, Nebraska. The city is splashed with bright hues as the mercury continues to climb and daylight reaches its peak. Basking under the longest days of the year, residents enthusiastically dive into an array of summertime activities. Weather in June »Weather in July
In Grand Island, Nebraska, July takes the crown for the hottest month of the year. The cityscape hums with activity as locals enjoy the best of summer under clear, blue skies. Rainfall and snowfall are practically non-existent, leaving room for uninterrupted outdoor fun. Weather in July »Weather in August
August in Grand Island, Nebraska, is synonymous with warm nights and scorching days. The city pulsates with an infectious summer energy, rippling through local events and festivals. However, a modicum of relief occurs with the slight dip in temperatures as August progresses. Weather in August »Weather in September
September announces the arrival of fall in Grand Island, Nebraska. The city witnesses a dramatic change in its foliage, painting a kaleidoscopic canvas of reds, oranges, and yellows. Marking the end of summer, September's weather echoes a melodious equilibrium, blending the warmth of summer with the cool onset of autumn. Weather in September »Weather in October
In October, Grand Island, Nebraska, is immersed in the heart of fall. The city's layout, decked in autumnal colour, gets an extra layer of charm under the crisp blue October sky. Occasional showers seep through the foliage, resulting in a slightly wetter month with rainfall at 1.57" (40mm). Weather in October »Weather in November
November in Grand Island, Nebraska, ushers in the early stage of winter. The city's fall colors start to fade, replaced by bare branches and frost-touched grass. The decreasing sunlight coupled with dropping temperatures create a serene and somewhat somber environment. Weather in November »Weather in December
December brings the full force of winter to Grand Island, Nebraska. The landscape is often transformed into a winter wonderland, replete with twinkling decorative lights mirrored in frosty windowpanes. Frigid temperatures set the stage for Christmastime festivities indoors. 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
The lowest temperatures are recorded in January, with averages reaching a high of 33.4°F (0.8°C) and a low of 19°F (-7.2°C).
The most humid month is January, with an average relative humidity of 78%.
The month with the least rainfall in Grand Island is January, when the rain falls for 3.7 days and typically collects 0.51" (13mm) of precipitation.
Throughout the year, there are 109.5 rainfall days, and 19.37" (492mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
Throughout the year, in Grand Island, Nebraska, there are 25.3 snowfall days, and 12.48" (317mm) of snow is accumulated.
With an average of 5.4h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index in Grand Island 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 Grand Island, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
May is the month with the most rainfall in Grand Island. Rain falls for 15 days and accumulates 3.27" (83mm) of precipitation.
June through September are months without snowfall.
With an average of 15h and 6min of daylight, June has the longest days of the year in Grand Island, Nebraska.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
During the warmest month in Grand Island, July, temperatures average a high of 86.7°F (30.4°C) and a low of 65.8°F (18.8°C).
With an average of 10.6h of sunshine, July has the most sunshine of the year.
With an average relative humidity of 61%, October is the least humid month in Grand Island.
December is the month with the most snowfall in Grand Island. Snow falls for 5.4 days and accumulates 3.23" (82mm) of snow.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Grand Island, NE
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure
Grand Island, NE
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Grand Island, NE
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.7mph - Average wind speed in March:
11.1mph - Average wind speed in April:
11.6mph - Average wind speed in May:
10.1mph - Average wind speed in June:
9.4mph
- Average wind speed in July:
8mph - Average wind speed in August:
8.5mph - Average wind speed in September:
9.5mph - Average wind speed in October:
10.5mph - Average wind speed in November:
10.5mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity
Grand Island, NE
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is October (61%).
Average rainfall
Grand Island, NE
- Average rainfall in January:
0.51" - Average rainfall in February:
0.55" - Average rainfall in March:
1.5" - Average rainfall in April:
1.93" - Average rainfall in May:
3.27" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.2" - Average rainfall in August:
1.85" - Average rainfall in September:
1.34" - Average rainfall in October:
1.57" - Average rainfall in November:
0.67" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days
Grand Island, NE
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
1.7 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
15 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
4.9 days - Average rainfall days in December:
3.2 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (1.7 days).
Average snowfall
Grand Island, NE
- Average snowfall in January:
2.32" - Average snowfall in February:
2.05" - Average snowfall in March:
2.76" - Average snowfall in April:
0.75" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is December (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Grand Island, NE
- Average snowfall days in January:
5.5 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.1 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:
0.9 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Grand Island, NE
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - 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 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
6h and 24min - Average sunshine in March:
7h and 6min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 12min - Average sunshine in December:
5h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days
Grand Island, NE
- Average sunshine days in January:
22.2 days - Average sunshine days in February:
20.4 days - Average sunshine days in March:
18.6 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
14.6 days - Average sunshine days in June:
13.6 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
21 days - Average sunshine days in November:
22.9 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is June (13.6 days).
Average UV index
Grand Island, NE
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
Grand Island, NE
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility
Grand Island, NE
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).
