As we close March, we close the book on a #heatwave without precedent, one meteorologists simply didn’t think was possible. As per @extremetemps research, in total 17 States set new all-time March maximum temperature records in the last 10 days… 1/

To put this into local perspective, this would be like Niagara seeing 10 straight days of 28-30C in March

This is just absurd. Flagstaff AZ has gone 10 straight days with record highs above their previous all time MONTHLY MAXIMUM for March (73F). No stretch this warm has ever been recorded there even in April! You have to go to early May to get warmer values. Data back to 1893. An unprecedented event.

I'm surprised March 2012 doesn't show up on that list

Crazy stats from Flagstaff AZ. Today will be their TENTH day in a row with a highs greater than their previous all time monthly March maximum of 73F. The week of Mar 18-24 averaged highs of 78F, more typical of mid June, and a full 10F greater than the next warmest week. Historic early heat wave.

Record hottest March day in Kansas.. 104F (40C) in Hugoton. Beats previous March record of 101F (38C) set 5 days ago. Also 104F (40C) at Ashland via KSU mesonet network if verified.
Other notable hot spots:
Medicine Lodge: 103F
Liberal: 102F

106F (41C) at Beaver OK today via OK mesonet. Sets new record for hottest all time March temperature for Oklahoma, beating old record of 104F (40C) from 1971

Saw the play.. it was fantastic.

Flagstaff will hit 10 in a row on Friday, possibly 11 Saturday. Staggering stat

Probably the most extensive extreme heat wave since July 1936

March madness!!

As of today (Mar 22), Flagstaff AZ has recorded 5 straight days with max temps above its previous all time March monthly maximum (73F) NWS is forecasting another 6 straight days > 73F. Exceeding a monthly max for 11 straight days must be some sort of climate record. Off the chart stuff.

As of today (Mar 22), Flagstaff has recorded 5 straight days with max temps above its previous all time March monthly maximum (73F) NWS is forecasting another 6 straight days > 73F. Exceeding a monthly max for 11 straight days must be some sort of climate record. Off the chart stuff.

Flagstaff, Arizona:

• March 19, 2026 high: 84°F
• Previous March all-time high: 73°F
• April all-time high: 80°F

That's just plain ridiculous.

Through yesterday, these are the major climate stations that have recorded a temperature this month that matches or exceeds their April monthly record. 🔥

Quite the temperature gradient across the Ohio Valley today. 40-50F near Lake Erie, 80-85F southern OH/SW PA.

Ok, thank you for the info

I see that Superior, Nebraska had a max of 101F on March 21 1907 during another notable March heat wave. Is that not valid?

Never seen anything like this. 200+ monthly records set today alone! Every pink dot means a city set its new all-time highest March temperature! That’s around 570 new monthly records in the last 4 days. Some set multiple times. By far the most rogue #heatwave the US has experienced in memory.

Mental heat moved today in the Central States with
101F in Kansas,99 in Nebraska,97 in South Dakota,Missouri and Iowa (State record trashed by 5F !) and 90 in Wyoming.

Colorado also 95F ,1F from its record.
102F in Oklahoma

Updated list of new March State records in 2026

96F (36C) in Lincoln NE as of 3 pm CDT March 21st. That's 40F above their average high of 56F/13C for this date. It exceeds their hottest March temp by 5F (old record was 91F) Earliest 95F by a month (prev earliest 95F was Apr 20) Insane early season heat in the US plains today

Note that back in March 1907, another early season heat wave resulted in temperatures of 101F in Nebraska and 100F in Kansas, also on March 21st.

March madness! Forecast highs (F) across the US plains today (March 21) 90s into SD. 98F for NE and KS. Over 100F for OK/TX. This graphic would be a warm day for June. MARCH??? Absolutely insane.

Flagstaff AZ has exceeded their all time March maximum of 73F three straight days as of March 20, and is forecast to exceed that mark the next 7 days in a row. Exceeding a site's monthly maximum 10 days in a row has to be some sort of climatological record. I've never heard of such a crazy stat.

To put that into perspective locally, that would be like Niagara/GTA seeing 10 days in a row above 27C in March. Simply unfathomable

The multiple 112° readings today are just 1° short of the national April record, which happened in Death Valley with 113° on April 24, 1946 and also on April 22, 2012. Note that those occurred in late April (h/t to weather historian Chris Burt).

8 STATES WITH A MARCH HEAT RECORD

CA 112 Buttercup and Squaw Lake
AZ 112 Fort Yuma and Martinez Lake
NV 104 Cottonwood Cove
NM 99 Draw Near
UT 95 St George COOP
MO 95 Harrisonville
WY 87 Torrington and Guernsey yesterday
ID 86 Boise River

OK,OR,MT,KS,NE,CO barely missed it

More March madness..
- Flagstaff's high of 84F on March 19 is not only an all time high for March, it's warmer than any April maximum! (80F)
- previous earliest 84F was May 2nd 1947
- Flagstaff has hit 80F only twice in April. They will exceed that mark at least 3 times this week!

This March heat wave over the SW US is mind boggling. Before this event, Flagstaff's all time March high was 73F. They have exceeded that mark the past 3 days, and are expected to exceed it for at least the next 7 days! Breaking your all time monthly record 10 days in a row?! I've never seen that.

History is made. New US March monthly heat record at Martinez Lake, AZ at 110°! The most intense spring #heatwave in US history.