Climate and monthly weather forecastHammond, LA
Climate and monthly weather forecast
The climate of Hammond
Hammond, Louisiana, USA rests within a climate zone identified by the Köppen Climate Classification as Cfa - a humid subtropical climate with no dry season. On an annual basis, the fluctuations of climatological parameters weave a narrative of diverse weather conditions.The ambient air temperature in Hammond extends from 42.8°F (6°C) to 91.9°F (33.3°C) throughout the year, painting a picture of climate alterations between frosty winter early mornings and blistering summer afternoons. Meanwhile, the humidity hovers moderately from 73% in the more draught-like October to 81% in the oppressively humid February and December.
Rain showers are a common sight in Hammond. Precipitation takes the stage year-round with rainfall ranging from 1.14" (29mm) in November to an elevated peak of 3.9" (99mm) in July. Instances of snow are exceptionally rare, with only minuscule snowfall occurring in January and December.
Frequent sunny days, with a monthly average of sunlight duration stretching from 4.8 hours to 10.4 hours, offer ample opportunities to bask in the sun, especially between May and August. Combined with high visibility of more than 5 miles throughout the year, Hammond’s climate is perfectly suited for outdoor activities.
The breeze in Hammond rarely reaches gusty extremes, with the fastest winds clocking in from 10.5 MPH to 11 MPH. However, maximum wind speeds remain within 5.1 MPH to 7.3 MPH, hinting at a predictably calm wind scenario overall.
The best time to visit Hammond
For weather enthusiasts and sightseers, the best time to visit Hammond coincides with the months of April and May. During these months, there’s a graceful dance between modest humidity levels, favorable temperatures ranging from 58.6°F (14.8°C) to 85.1°F (29.5°C), and lower rainfall levels of 2.05" (52mm) to 2.32" (59mm), which creates an appealing climate for outdoor enthusiasts. Moreover, sunshine hours peak to 9.1 hours during this period, painting the days brighter.The worst time to visit Hammond
While Hammond maintains a generally accommodating climate, the less favorable period encompasses the months of July to September. This timeframe is characterized by escalating temperatures soaring between 88°F (31.1°C) to 91.9°F (33.3°C). Notably, the highest rainfall of 3.9" (99mm) to 3.78" (96mm) makes an appearance during these months. Thus, visitors should anticipate frequent showers and oppressively muggy conditions.Spring weather in Hammond
Spring signals a transition from colder to warmer months in Hammond, from March to May. The average high temperatures ascend from 71.2°F (21.8°C) to 85.1°F (29.5°C), accompanied by minor changes in nightly lows. Rainfall remains constant, hovering from 1.69" (43mm) to 2.32" (59mm), providing the perfect backdrop for luscious greenery to flourish.Summer weather in Hammond
Summer, from June to August, ushers in the highest temperatures in Hammond. Daytime highs peak at an impressive 91.9°F (33.3°C) in July and lowers slightly to 88°F (31.1°C) in August. Simultaneously, the humidity remains relatively high, making summer days feel noticeably hotter. Rainfall reaches its zenith, with July boasting hefty downpours of 3.9" (99mm).Autumn weather in Hammond
Autumn, between September and November, brings with it noticeably cooler temperatures and lesser rainfall than the summer months. Gradually falling temperatures, spanning from 88°F (31.1°C) to 68.4°F (20.2°C), intertwine with declining rainfall from 1.97" (50mm) to 1.14" (29mm), steering the climate towards a colder, drier season.Winter weather in Hammond
Winter spans from December to February, encapsulating the region in a chilly embrace. During this period, Hammond experiences its coolest temperatures of the year, sinking to a chilly 42.8°F (6°C). Precipitation is steady with rainfall levels from 2.64" (67mm) in December to 1.85" (47mm) in February, while snow makes an infrequent appearance accounting for almost no accumulation.Weather in January
Unlike the bitterly cold condition experienced in many parts of the United States, Hammond in January presents a rather mild winter environment. The weather typically features cool air, foggy mornings, light rain, and low cloud cover. Weather in January »Weather in February
As the calendar flips from January in Hammond, there's a slight rise in temperatures. February presents a mix of cool breezes, humid days, and more occurrences of rainfall compared to January. The increase in cloud cover fosters relative humidity that averages around 81%. Weather in February »Weather in March
March transitions Hammond from the chilly winter to the warmth of spring. The arrival of spring is marked by days filled with sunshine, transitioning cloud cover, and increased daylight hours. The higher temperatures, ranging from 53.2°F (11.8°C) to 71.2°F (21.8°C), supports the growth and blossoming of vegetation. Weather in March »Weather in April
April ushers in the warmth, casting away the last vestiges of winter in Hammond. Frequent showers, mild temperatures, and longer daylight hours become the norm. With high temperatures reaching up to 78.4°F (25.8°C), a significant rise from March is witnessed. Weather in April »Weather in May
Consecutive warm months lead to May being one of the warmest months in Hammond with high temperatures reaching up to an impressive 85.1°F (29.5°C). The rise in heat signifies the approaching summer, leading to an increase in outdoor activities. Weather in May »Weather in June
June introduces the summer season to Hammond with warmer temperatures and longer days. High temperatures rise to a scorching 90.9°F (32.7°C), making it paramount to stay hydrated and avoid overexposure to the sun. Activities shift to the early morning and late evenings to escape the sweltering midday heat. Weather in June »Weather in July
July stands out as the hottest month in Hammond with high temperatures reaching a peak of 91.9°F (33.3°C). Beach and pool activities often take precedence due to the high heat and lengthy sunshine durations. Yet, despite the intense heat, the city witnesses the highest amount of rainfall registered in a month with 20.6 days of precipitation. Weather in July »Weather in August
Summer continues in full swing in August, with temperatures reaching 91.4°F (33°C). Purple martins and other migratory birds begin to gather for their autumn journey south. Despite the relentless summer heat, August witnesses a slightly lower amount of rainfall in comparison to July. Weather in August »Weather in September
As September arrives in Hammond, there's a notable decrease in high temperatures, hovering around 88°F (31.1°C). The decline in temperature starts to signal the imminent arrival of autumn. The frequency of rainfall decreases dramatically when compared to the wet months of July and August. Weather in September »Weather in October
The fall season is in full effect by October in Hammond, marking a significant transformation from the summer weather. Temperatures take on a more comfortable range, with cool mornings and moderate midday weather. Compared to September, October experiences slightly lesser rainfall spread across fewer days. Weather in October »Weather in November
November witnesses a further drop in temperatures, featuring crisp mornings and chilly, long nights. Despite the declining temperatures, the city of Hammond usually stays free from snow during this month, just like its fellow winter months. Weather in November »Weather in December
The year concludes with December, known to bring colder days and frosty nights to Hammond. The drop in temperatures to lows of 46.9°F (8.3°C) and highs of 62.1°F (16.7°C) signifies the full arrival of winter. Despite the cold, snowfall remains a rarity in December, marking a characteristic trend throughout the year. Weather in December »Updated: Aug 20, 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
Hammond's coldest month, January, registers temperatures that range from a high of 58.6°F (14.8°C) to a low of 42.8°F (6°C).
Throughout the year, there are 163.3 rainfall days, and 27.64" (702mm) of precipitation is accumulated.
January and December are months with snowfall.
January is the month with the most snowfall. Snow falls for 0.2 days and accumulates 0.2" (5mm) of snow.
In Hammond, during the entire year, snow falls for 0.4 days and aggregates up to 0.24" (6mm) of snow.
January and December, with an average maximum UV index of 3, are months with the lowest UV index.
February and December, with an average relative humidity of 81%, are most humid months.
February through November are months without snowfall.
The months with the least sunshine are February and December, with an average of 4.8h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
The months with the highest UV index are May through August, with an average maximum UV index of 7.
With an average of 14h and 6min of daylight, June has the longest days of the year.
The months with the most sunshine are June and August, with an average of 10.4h of sunshine.
July brings the highest temperatures, with an average high of 91.9°F (33.3°C) and an average low of 74.1°F (23.4°C).
The month with the most rainfall in Hammond is July, when the rain falls for 20.6 days and typically aggregates up to 3.9" (99mm) of precipitation.
October is the least humid month, with an average relative humidity of 73%.
November is the month with the least rainfall. Rain falls for 7.6 days and accumulates 1.14" (29mm) of precipitation.
The month with the shortest days is December, with an average of 10h and 12min of daylight.
Average temperature
Hammond, LA
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (58.6°F).
The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure
Hammond, LA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed
Hammond, LA
- Average wind speed in January:
6.8mph - Average wind speed in February:
6.8mph - Average wind speed in March:
6.6mph - Average wind speed in April:
7.1mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5mph
- Average wind speed in July:
4.6mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5mph - Average wind speed in October:
5.8mph - Average wind speed in November:
6.3mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity
Hammond, LA
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Hammond, LA
- Average rainfall in January:
1.97" - Average rainfall in February:
1.85" - Average rainfall in March:
1.69" - Average rainfall in April:
2.05" - Average rainfall in May:
2.32" - Average rainfall in June:
2.44"
- Average rainfall in July:
3.9" - Average rainfall in August:
3.78" - Average rainfall in September:
1.97" - Average rainfall in October:
1.89" - Average rainfall in November:
1.14" - Average rainfall in December:
2.64"
The wettest month (with the highest rainfall) is July (3.9").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days
Hammond, LA
- Average rainfall days in January:
10.1 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
11.2 days - Average rainfall days in May:
13 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
20.6 days - Average rainfall days in August:
20.7 days - Average rainfall days in September:
16.7 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
13.1 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.6 days).
Average snowfall
Hammond, LA
The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days
Hammond, LA
- Average snowfall days in January:
0.2 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 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 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.2 days
The months with the highest number of snowfall days are January and December (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Hammond, LA
- Average daylight in January:
10h and 24min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 54min - Average daylight in May:
13h and 42min - Average daylight in June:
14h and 6min
- Average daylight in July:
13h and 54min - Average daylight in August:
13h and 12min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 36min - Average daylight in December:
10h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
4h and 48min - Average sunshine in March:
7h and 18min - Average sunshine in April:
9h and 6min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 54min - Average sunshine in December:
4h and 48min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days
Hammond, LA
- Average sunshine days in January:
19.2 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
16.4 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
15.4 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
7.9 days - Average sunshine days in August:
8 days - Average sunshine days in September:
11.6 days - Average sunshine days in October:
19 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (7.9 days).
Average UV index
Hammond, LA
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Hammond, LA
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility
Hammond, LA
The months with the highest visibility are January, February, April, June, August, October, November and December (6mi).
The months with the lowest visibility are March, May, July and September (5mi).
