Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sulphur Springs enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 39°F in January while summers reach 81°F in July. The area gets 305 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 48.6 inches (wetter than the 38-inch national average). The area receives 12.5 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 910 feet.
Temperature
39°F Jan (4°C)81°F Jul (27°C)
Annual Average
60.5°F
12% above US avg
January Average
39°F (4°C)
July Average
81°F (27°C)
Sunny Days
305 days/yr
Geography
Elevation
910 ft (277 m)
Area
1.0 sq mi (2.6 km²)
Population Density
1,025/sq mi
Coordinates
36.4841°N, 94.4601°W
Timezone
America/Chicago
County
McDonald County County
Nearest Airport
Northwest Arkansas Ntl (XNA) 16 miles away
Precipitation & Snow
Annual Rainfall48.6"
28% above US avg
Snowfall12.5"
Wettest Month (May)5.08"
Driest Month (Jan)2.01"
Air Quality
AQI Median
43.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
64.0 / 100
Social Vulnerability
27.4 / 100
Community Resilience
2.1 / 100
Hazard Breakdown
Tornado
Relatively Moderate
Hurricane
Very Low
Earthquake
Very Low
Wildfire
Relatively Low
Flood
Relatively Moderate
Hail
Relatively Low
Strong Wind
Relatively Moderate
Heat Wave
Relatively Low
Winter Weather
Relatively Low
Lightning
Relatively Low
Ice Storm
Relatively High
Drought
Relatively Moderate
Cold Wave
Relatively Low
Landslide
Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
11 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.6.
Jun 11, 2017
6 km NNE of Bergman, Arkansas
M3.6
132 km
6 km
Jun 16, 2017
6 km N of Bergman, Arkansas
M2.9
132 km
6 km
Mar 23, 2024
9 km SE of Foyil, Oklahoma
M2.8
90 km
5 km
Jan 14, 2016
7 km W of Talala, Oklahoma
M2.7
118 km
5 km
Apr 3, 2016
Arkansas-Oklahoma border region
M2.7
101 km
5 km
Sep 3, 2015
6 km WSW of Vera, Oklahoma
M2.6
133 km
5 km
May 21, 2010
2 km SW of Centerton, Arkansas
M2.6
21 km
1 km
Jun 21, 2017
6 km N of Bergman, Arkansas
M2.5
131 km
5 km
May 13, 2015
8 km E of Lead Hill, Arkansas
M2.5
147 km
0 km
Apr 29, 2010
3 km SW of Centerton, Arkansas
M2.5
21 km
0 km
Aug 11, 2011
11 km WSW of Jasper, Arkansas
M2.5
118 km
4 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
671 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF5. Total: 220 fatalities, 2,233 injuries.
Date
Rating
Distance
Path
Fatalities
May 22, 2011
EF5
64 km
21.6 mi
158
May 10, 2008
EF4
83 km
75.5 mi
21
Apr 24, 1975
EF4
40 km
11.9 mi
3
Sep 27, 1959
EF4
81 km
20.4 mi
1
Apr 3, 1956
EF4
56 km
41.8 mi
0
May 25, 2024
EF3
25 km
7.9 mi
0
Mar 30, 2022
EF3
49 km
5.2 mi
0
May 22, 2019
EF3
71 km
9.2 mi
0
May 22, 2019
EF3
94 km
11.3 mi
3
May 22, 2011
EF3
39 km
17.9 mi
0
Dec 31, 2010
EF3
55 km
21.1 mi
4
Mar 12, 2006
EF3
33 km
25.0 mi
0
Mar 12, 2006
EF3
72 km
29.0 mi
0
Mar 12, 2006
EF3
81 km
42.0 mi
1
May 4, 2003
EF3
79 km
25.0 mi
5
May 4, 2003
EF3
54 km
49.0 mi
7
Jun 1, 1999
EF3
91 km
2.0 mi
2
Nov 22, 1983
EF3
75 km
19.0 mi
0
Mar 15, 1982
EF3
95 km
9.0 mi
0
Apr 19, 1981
EF3
85 km
3.0 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: UNNAMED (7,415 acres, 2003).
Year
Name
Acres Burned
Distance
2003
UNNAMED
7,415
99 km
2010
SPUD ROCK CENTRAL
6,117
97 km
2009
TELAMAY HOLLOW
5,686
61 km
2009
SAWMILL HOLLOW
5,166
58 km
1992
UNNAMED
4,546
50 km
2005
FLAT ROCK
4,472
86 km
2021
ALEXANDER MOUNTAIN BLOCKS 1 2 5
4,214
100 km
1995
F128
4,210
58 km
2006
UNNAMED
3,909
99 km
2024
NATURE FIRE
3,744
60 km
2019
RX - ALEXANDER MTN BLK3
3,492
99 km
1986
UNNAMED
3,427
51 km
2011
UNNAMED
3,285
94 km
2016
PIPELINE
3,243
98 km
1989
UNNAMED
3,186
99 km
2007
UNNAMED
3,160
48 km
2018
UNNAMED
3,100
98 km
2006
HUNT MILL HOLLOW FIRE
3,080
89 km
2016
RXBURN
2,951
38 km
1996
UNNAMED
2,918
50 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
39°F (4°C)
2.0 in
Driest
February
40°F (4°C)
2.3 in
March
48°F (9°C)
4.1 in
April
57°F (14°C)
4.4 in
May
65°F (18°C)
5.1 in
Wettest
June
73°F (23°C)
4.8 in
July
81°F (27°C)
3.1 in
Warmest
August
77°F (25°C)
3.5 in
September
70°F (21°C)
5.0 in
October
59°F (15°C)
3.9 in
November
47°F (9°C)
4.3 in
December
38°F (3°C)
3.0 in
Coldest
Sulphur Springs has a seasonal temperature swing of 43°F / from 38°F in December to 81°F in July. Total annual precipitation is 45.5 inches, with May being the wettest month (5.1") and January the driest (2.0").