Hammond in Summer
In summer (June, July and August), Hammond sees average daytime highs around 90°F and overnight lows near 73°F, with 17.1 in of rain over about 51 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 90°F. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels oppressive.
Summer is Hammond's weakest season of the year to visit on our travel score. For the whole year in context, see Hammond's year-round climate.
- Avg daytime high
- 90°F
- warmest season of the year
- Avg overnight low
- 73°F
- Rainfall
- 17.1 in
- 51 wet days
- Avg wind
- 4 mph
- Travel score
- 3.4
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Hammond in Summer
Across summer, daytime highs hold fairly steady around 90°F.
A typical summer day in Hammond reaches about 90°F and drops to 73°F overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Hammond
Once humidity and wind are folded in, summer brings about 92 days that feel above 90°F and 0 that feel at or below 32°F.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Hammond weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 61° / 43° | 4.7 | 9.5 | 10.3 | 5.2 |
| Feb | 65° / 46° | 4.6 | 9.4 | 10.9 | 5.9 |
| Mar | 71° / 52° | 4.9 | 10.3 | 11.8 | 6.6 |
| Apr | 77° / 58° | 4.6 | 9.7 | 12.7 | 6.9 |
| May | 84° / 66° | 4.4 | 10.1 | 13.5 | 5.7 |
| Jun | 89° / 72° | 5.3 | 15 | 13.9 | 3.8 |
| Jul | 90° / 74° | 5.9 | 18.6 | 13.8 | 3.1 |
| Aug | 90° / 73° | 6.0 | 17.5 | 13.1 | 3.2 |
| Sep | 87° / 69° | 4.4 | 11.5 | 12.2 | 4.6 |
| Oct | 79° / 59° | 3.7 | 8.1 | 11.3 | 7.1 |
| Nov | 70° / 49° | 3.6 | 7.8 | 10.5 | 7.0 |
| Dec | 63° / 45° | 4.2 | 9.4 | 10.1 | 5.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Hammond gets around 17.1 in of rain over 51 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 48 min in early June to 12 h 42 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.8 kWh/m².
Hazard calendar for Hammond
In summer, Hammond overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Hammond sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Hammond?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Hammond.
What to pack for Hammond in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Hammond sees daytime highs around 90°F and nights near 73°F. Pack light clothes, rain gear and sun protection. About 51 days see rain.
Sea temperature near Hammond in Summer
The nearest coast averages about 85°F across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 mi away) is warmest in August at about 86°F and coldest in January near 58°F.
It's comfortable for a long swim from Apr 4 to Nov 14 — about 7.4 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 58 | 58 | 64 | 71 | 78 | 84 | 86 | 86 | 83 | 76 | 68 | 62 |
| Comfort | Bracing | Bracing | Cool | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 58 | Bracing |
| Feb | 58 | Bracing |
| Mar | 64 | Cool |
| Apr | 71 | Refreshing |
| May | 78 | Warm |
| Jun | 84 | Tropical |
| Jul | 86 | Tropical |
| Aug | 86 | Tropical |
| Sep | 83 | Tropical |
| Oct | 76 | Warm |
| Nov | 68 | Cool |
| Dec | 62 | Cool |
UV index in Hammond in Summer
Clear-sky midday UV across summer averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hammond peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 7 | 10 | 10 | 10 | 10 | 9 | 9 | 6 | 5 | 4 |
| Level | Moderate | High | High | Very high | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 10 | Very high |
| May | 10 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in Hammond in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Hammond is worst in July — around 24 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 9 | 12 | 12 | 15 | 19 | 24 | 19 | 14 | 11 | 9 | 8 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 12 | Good |
| Apr | 12 | Good |
| May | 15 | Moderate |
| Jun | 19 | Moderate |
| Jul | 24 | Moderate |
| Aug | 19 | Moderate |
| Sep | 14 | Moderate |
| Oct | 11 | Good |
| Nov | 9 | Good |
| Dec | 8 | Good |
Where is Hammond?
Hammond sits at 30.5°N, 90.5°W, 43 ft above sea level, in United States. The nearest listed city is Laplace, 30 mi away.
Topography around Hammond
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Hammond.
Within 2 miles, the terrain around Hammond has only modest variations in elevation — a maximum elevation change of 92 ft around an average of 49 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 197 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 525 ft.
The land around Hammond is covered by trees (61%) and artificial surfaces (20%) within 2 miles, trees (76%) within 10 miles, and trees (67%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hammond (30.5046°, -90.4629°, elevation 43 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.