September
September · August · June
79climate match
United States · 1991–2020
Best time to visit
Junction City.
September leads for comfortable weather in Junction City: typically 25°C by day, 11.1°C at night, with 81 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high25°C
Typical low11.1°C
Rain in September81 mm
August
August · July · June
67climate match
October
October · September · May
71climate match
The weakest month is January, scoring 5 against September’s 79 — days reach only 3°C, 21° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
53° / -7.7°
Feb
54.9° / -6.7°
Mar
910.5° / -2.6°
Apr
4017.9° / 2.6°
May
6622.8° / 8.6°
Jun
7026.9° / 13.8°
Jul
6428.7° / 16.1°
Aug
7428.2° / 15.1°
Sep
7925° / 11.1°
Oct
5118.7° / 4.4°
Nov
1811.7° / -1.1°
Dec
55.5° / -4.6°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 3°C | -7.7°C | 87 mm | 11 | 9 h 39 | 5 | Strong coverage |
| February | 4.9°C | -6.7°C | 67 mm | 9.4 | 10 h 38 | 5 | Strong coverage |
| March | 10.5°C | -2.6°C | 94 mm | 10.2 | 11 h 49 | 9 | Strong coverage |
| April | 17.9°C | 2.6°C | 110 mm | 11.1 | 13 h 12 | 40 | Strong coverage |
| May | 22.8°C | 8.6°C | 111 mm | 11.6 | 14 h 20 | 66 | Strong coverage |
| June | 26.9°C | 13.8°C | 115 mm | 10.8 | 14 h 58 | 70 | Strong coverage |
| July | 28.7°C | 16.1°C | 118 mm | 10.1 | 14 h 43 | 64 | Strong coverage |
| August | 28.2°C | 15.1°C | 84 mm | 8.1 | 13 h 44 | 74 | Strong coverage |
| September | 25°C | 11.1°C | 81 mm | 7.3 | 12 h 24 | 79 | Strong coverage |
| October | 18.7°C | 4.4°C | 83 mm | 9 | 11 h 05 | 51 | Strong coverage |
| November | 11.7°C | -1.1°C | 82 mm | 9.2 | 9 h 56 | 18 | Strong coverage |
| December | 5.5°C | -4.6°C | 84 mm | 11 | 9 h 22 | 5 | Strong coverage |
What has changed
Junction City runs -0.2°C
on the 1961–1990 baseline.
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
Jan
0.0
Feb
+0.4
Mar
-0.4
Apr
-0.5
May
-0.7
Jun
-0.9
Jul
-0.5
Aug
-0.5
Sep
-0.1
Oct
-0.2
Nov
-0.5
Dec
+1.5
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.9°C25 Jan 1950 | -37.2°C19 Jan 1994 | 64 mm8 Jan 1998 | 209 mm2005 · driest 19 mm in 1946 | 85 |
| February | 25.6°C21 Feb 2018 | -32.2°C3 Feb 1951 | 67 mm2 Feb 1988 | 169 mm2019 · driest 7 mm in 1954 | 85 |
| March | 30.6°C23 Mar 2026 | -24.4°C4 Mar 1943 | 91 mm10 Mar 1964 | 264 mm1964 · driest 24 mm in 1947 | 85 |
| April | 38.9°C29 Apr 1986 | -12.2°C1 Apr 1964 | 62 mm4 Apr 2018 | 193 mm1961 · driest 20 mm in 1971 | 85 |
| May | 34.4°C18 May 1962 | -5.6°C10 May 1966 | 82 mm24 May 1968 | 250 mm1968 · driest 15 mm in 1949 | 85 |
| June | 37.8°C26 Jun 1988 | 0.0°C6 Jun 1945 | 100 mm28 Jun 1998 | 279 mm2008 · driest 23 mm in 1966 | 85 |
| July | 39.4°C14 Jul 1954 | 4.4°C1 Jul 1988 | 94 mm20 Jul 1963 | 324 mm1992 · driest 26 mm in 1946 | 85 |
| August | 37.8°C18 Aug 1988 | 2.2°C29 Aug 1965 | 103 mm14 Aug 1944 | 255 mm1979 · driest 0 mm in 1949 | 83 |
| September | 38.3°C1 Sep 1953 | -4.4°C29 Sep 1942 | 125 mm9 Sep 2004 | 251 mm2004 · driest 12 mm in 1943 | 84 |
| October | 32.8°C2 Oct 2019 | -10.0°C30 Oct 1952 | 66 mm8 Oct 1998 | 173 mm1983 · driest 2 mm in 1963 | 84 |
| November | 31.1°C1 Nov 1950 | -24.4°C30 Nov 1958 | 64 mm16 Nov 1985 | 293 mm1985 · driest 17 mm in 1976 | 84 |
| December | 25.0°C3 Dec 1982 | -31.1°C23 Dec 1989 | 51 mm17 Dec 2000 | 218 mm1990 · driest 5 mm in 1955 | 84 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | 3 | 5 |
| February | 0 | 0 | 25 | 2 | 4 |
| March | <1 | 0 | 22 | 4 | 2 |
| April | 5 | <1 | 11 | 4 | <1 |
| May | 12 | 3 | 1 | 4 | 0 |
| June | 22 | 8 | 0 | 4 | 0 |
| July | 28 | 12 | 0 | 4 | 0 |
| August | 27 | 10 | 0 | 3 | 0 |
| September | 16 | 4 | <1 | 3 | 0 |
| October | 5 | <1 | 7 | 3 | 0 |
| November | <1 | 0 | 19 | 3 | <1 |
| December | 0 | 0 | 25 | 3 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 34% | 8% | 45% | -0.2–7.1°C |
| February | 1% | 32% | 7% | 41% | 1.6–8.8°C |
| March | 11% | 33% | 10% | 46% | 7.9–14.6°C |
| April | 28% | 36% | 12% | 46% | 15.6–21.0°C |
| May | 51% | 36% | 13% | 49% | 20.8–26.7°C |
| June | 67% | 32% | 11% | 39% | 25.7–29.5°C |
| July | 70% | 30% | 12% | 34% | 27.7–31.1°C |
| August | 75% | 25% | 10% | 25% | 26.8–30.6°C |
| September | 70% | 23% | 8% | 24% | 23.5–27.8°C |
| October | 40% | 25% | 8% | 28% | 16.8–22.0°C |
| November | 10% | 31% | 9% | 39% | 8.9–14.5°C |
| December | <1% | 33% | 9% | 45% | 1.8–9.1°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page
Nearby, measured,
and named.
- Place identity
- GeoNames 4515688
- NOAA station
- USC00335857 · NEW LEXINGTON 2 NW
- Station distance
- 7.2 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 39.72°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.