Newton weather in September

In September, Newton sees average daytime highs of 81°F and overnight lows near 60°F, with 3.3 in of rain across 7.3 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 85°F in the first days to 76°F by the end. The sky is clear or mostly clear about 53% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Newton's 1st-clearest and 10th-windiest month. For the whole year in context, see Newton's year-round climate.

Daytime high
81°
4th warmest
Overnight low
60°
9th coldest
Rainfall
3.3 in
7.3 wet days
Daylight
12 h 12 min
6:16 AM – 6:31 PM
Cloud cover
41%
1st clearest
Wind
9 mph
10th windiest
Solar energy
5.03 kWh/m²
Travel score
6.9
out of 10

Newton is city in and county seat of Harvey County, Kansas, United States.

Density
589/km²
people per km²
Founded
1871

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 85°F in the first days to 76°F by the end.

A typical September day in Newton reaches about 81°F in the afternoon and slips back to 60°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 91°F. Set against its neighbours, September runs about 8°F cooler than August and about 12°F warmer than October.

40°60°80°100°151015202530
Avg high (°F)Avg low (°F)
18665
28665
38565
48564
58564
68464
78463
88363
98362
108262
118262
128261
138161
148160
158060
168060
178059
187959
197958
207958
217858
227857
237857
247756
257756
267755
277655
287654
297654
307554

How September really feels in Newton

Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Newton weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 24°1.04.32.59.70.4
Feb47° / 27°1.452.210.51.7
Mar57° / 36°2.77.61.411.74.4
Apr67° / 46°3.69.60.3136.2
May76° / 56°5.412.10146.5
Jun85° / 66°4.210.7014.65.2
Jul90° / 70°3.68.7014.44.2
Aug88° / 68°3.68.3013.54.7
Sep81° / 60°3.37.3012.36.9
Oct68° / 47°2.870.2117.1
Nov55° / 35°1.75.30.79.94.1
Dec44° / 26°1.44.62.39.40.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27030
36931
46931
56931
66832
76733
86634
96634
106535
116535
126436
136436
146436
156337
166337
176436
186436
196436
206535
216634
226733
236832
246832
256931
266931
276931
286931
296931
306931

Chance of precipitation in September

Any precipitation

Newton gets around 3.3 in of rain over 7.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
123
222
322
423
523
623
724
824
925
1025
1126
1227
1327
1428
1528
1628
1728
1828
1928
2027
2127
2226
2325
2425
2524
2623
2723
2823
2923
3022

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1111834334
2131933313
3151933303
4172032283
5192032273
6212031262
7232130252
8252129242
9272128232
10282127232
11302026221
12322025221
13332024221
14352023211
15362022201
16381921201
17401921191
18411920191
19431819181
20451818171
21481817161
22511716151
23531715141
24551714131
25571614121
26591613111
27611612101
2863161191
2965151181
3066151081

Wind in September

Winds average 9 mph in September.

Across September, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over September. Sunrise moves from 6:03 AM to 6:29 AM, and sunset from 6:55 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:036:55
212.86:046:53
312.86:056:52
412.76:066:50
512.76:076:49
612.76:086:47
712.66:086:46
812.66:096:44
912.56:106:42
1012.56:116:41
1112.56:126:39
1212.46:136:37
1312.46:146:36
1412.36:156:34
1512.36:166:33
1612.26:166:31
1712.26:176:29
1812.26:186:28
1912.16:196:26
2012.16:206:24
2112.06:216:23
2212.06:226:21
2311.96:236:20
2411.96:246:18
2511.96:256:16
2611.86:256:15
2711.86:266:13
2811.76:276:11
2911.76:286:10
3011.76:296:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.03 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 6.84 kWh/m² in July across the year — September's 5.03 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.3Bright
85.3Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
Planning a trip in September

Is September a good time to visit Newton?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.9
Sightseeing
2nd-best month of the year
7.1
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Newton for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Newton in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Newton sees daytime highs around 81°F and nights near 60°F. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Newton in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Newton peaks around June 22 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 22UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Moderate
Location & terrain

Where is Newton?

Newton sits at 38.0°N, 97.3°W, 1,447 ft above sea level, in United States. The nearest listed city is Wichita, 24 mi away.

Topography around Newton

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Newton.

Within 2 miles, the terrain around Newton has only modest variations in elevation — a maximum elevation change of 98 ft around an average of 1,450 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 207 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 627 ft.

The land around Newton is covered by trees (28%), artificial surfaces (25%) and grassland (24%) within 2 miles, cropland (65%) and grassland (21%) within 10 miles, and cropland (47%) and grassland (44%) within 50 miles.

2 miles
98 ft
10 miles
207 ft
50 miles
627 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Wichita 24 mi · Hutchinson 32 mi · Derby 35 mi · Salina 57 mi · Emporia 68 mi · Junction City 73 mi · Great Bend 80 mi · Manhattan 89 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Newton (38.0467°, -97.345°, elevation 1,447 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).