2023

+1.35°F

ran +1.35°F warmer than the 1996–2025 average across 386 cities — the 155th coldest of 157 years on record.

Extremes

-45.0°F

Bettles, AK · Feb 27

121.0°F

Needles, CA · Jul 15

269

calendar-day record lows set in 2023 that still stand today

2,165

calendar-day record highs set in 2023 that still stand today

Each city's 2023 average temperature versus its 1996–2025 normal — blue where the year ran cool, red where it ran hot.

Each city's single hottest and coldest reading of 2023 — the number is the temperature, coloured hot-to-cold. Toggle between the two.

National temperature anomaly by month — red above the line is a warm month, blue below is cool.

+4.20J

+2.45F

-1.11M

+0.12A

+0.65M

-0.68J

+1.07J

+1.25A

+1.40S

+1.34O

+0.84N

+4.58D

1	Lander WY	-2.95°F
2	Ely NV	-2.15°F
3	Riverside CA	-1.95°F
4	Lake Havasu City AZ	-1.89°F
5	Nome AK	-1.86°F
6	Palmdale CA	-1.85°F
7	Bishop CA	-1.65°F
8	Burbank Glendale Pasadena CA	-1.61°F
9	Eureka NV	-1.52°F
10	Needles CA	-1.44°F

Warmest states of 2023

Vermont+2.72°Mississippi+2.64°Louisiana+2.60°Illinois+2.31°Kentucky+2.30°Wisconsin+2.28°

Coolest states of 2023

Nevada-0.88°Wyoming-0.80°Guam-0.67°California-0.47°Arizona-0.24°Idaho+0.04°

Coldest Since · Browse all states · See where it's hottest → hottestsince.com
part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-12 22:52Z
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