| July 1996 | Hail | Circle | 2 hurt, $30,000 | no account filed |
| July 2001 | Thunderstorm Wind | Circle | $1,600,000 | Damaging downburst winds blew down 25 steel electric towers as well as 25 wooden power poles. It also caused 100 percent crop damage over a 20 mile long area starting from 10 miles north and northwest of Circle, then southeast along Highway 200 to the Dawson County line. The crop damage ranged from 1 to 5 miles wide. Several farms had significant damage to buildings and property. The town of Circle had the grain elevators crushed in, with significant wind damage to other portions of the elevator buildings. Metal sheeting from the grain elevators was found downstream nearly a mile away. Many houses and vehicles had windows broken or shattered, and large trees were uprooted. The Circle Airport had a measured wind gust of 113 mph. |
| July 2000 | Hail | Circle | $150,000 | Baseball sized hail six inches deep fell on the community of Circle breaking windows and destroying area crops. |
| July 2008 | Thunderstorm Wind | Circle | $45,000 | A small bow echo downed eight power poles along Highway 200 and damaged a few shed roofs. The power was not restored until August 1st. |
| July 1997 | Thunderstorm Wind | Circle | $40,000 | An airplane hanger housing two airplanes was destroyed as its roof was lifted off and the walls caved in. The airplanes inside were significantly damaged. |
| July 2000 | Thunderstorm Wind | Circle | $35,000 | Severe thunderstorm winds took down eight power lines in Circle leaving 100 customers without power. Strong winds also took the top off of on of the local grain bins. |
| June 2002 | Thunderstorm Wind | Circle | $10,000 | Wind tipped camper over on Highway 200 5 miles southwest of Circle. |
| July 2010 | Thunderstorm Wind | Circle | $5,000 | Awning torn off of a home and flipped up on the roof by severe winds. |
| June 2025 | Hail | Circle | - | Hail up to the size of quarters was reported with wind gusts up to 30 mph. |
| June 2024 | Thunderstorm Wind | Circle | - | Public reported, via Facebook, an image of a piece of sheet metal coming off a structure at the McCone County Fairgrounds. |
| July 2024 | Hail | Circle | - | Public reported, via Facebook, hail up to the size of golf balls. |
| July 2023 | Hail | Circle | - | The public reported hail up to the size of quarters. |
| August 2023 | Thunderstorm Wind | Circle | - | The public reported tree branches being knocked down. They estimated the wind was gusting up to 60 mph. |
| June 2021 | Thunderstorm Wind | Circle | - | Public reported, via Facebook, an estimated 90 mph thunderstorm wind gust. Time estimated from radar. |
| May 2020 | Thunderstorm Wind | Circle | - | Public reported, via Facebook, a grain bin was blown over. Event time was estimated by radar. |
| June 2019 | Hail | Circle | - | Public estimated half-dollar size hail, along with heavy rain. |
| June 2019 | Thunderstorm Wind | Circle | - | Public estimated 60 mph wind gusts. |
| June 2019 | Hail | Circle | - | McCone County dispatch reported hen egg size hail, along with heavy rain. |
| June 2019 | Hail | Circle | - | Cooperative observer reported hail up to the size of golf balls, off and on for at least 20 minutes. |
| May 2018 | Hail | Circle | - | Public reported hail at least the size of quarters. |
| May 2018 | Hail | Circle | - | Public reported ping pong ball size hail. |
| June 2018 | Thunderstorm Wind | Circle | - | Law enforcement relayed a report through McCone County dispatch that five main transmission lines were blown down in the area around the town of Circle. |
| June 2018 | Thunderstorm Wind | Circle | - | Public reported a newly-constructed barn destroyed and siding and roof damage to a house in the town of Circle. Time estimated by radar. |
| June 2016 | Thunderstorm Wind | Circle | - | Trained spotter reported 60 mph wind gusts. |
| June 2016 | Thunderstorm Wind | Circle | - | Trained spotter reported a barn blown down and a camper rolled over. |
| July 2016 | Thunderstorm Wind | Circle | - | Trained spotter reported 60 mph wind gusts along with pea sized hail. |
| July 2016 | Thunderstorm Wind | Circle | - | A NWS employee reported 60 mph wind gusts, a few large downed tree branches and a power outage. |
| July 2016 | Thunderstorm Wind | Circle | - | Public reported 60 mph wind gusts. |
| July 2014 | Thunderstorm Wind | Circle | - | Trained spotter estimated wind gusts of 50 to 60 mph and some tree limbs broken. |
| July 2014 | Hail | Circle | - | Trained spotter reported golf ball-sized hail breaking vehicle windshields. |
| July 2014 | Thunderstorm Wind | Circle | - | Trained spotter reported some trees were blown down. |
| August 2014 | Hail | Circle | - | Trained spotter reported ping pong ball-sized hail. |
| August 2014 | Hail | Circle | - | Trained spotter reported hail that ranged from quarter-sized to golf ball-sized. |
| May 2014 | Hail | Circle | - | Trained spotter reported quarter-sized to golf ball-sized hail which persisted for 10 to 15 minutes, followed by 10 minutes of pea-sized hail, and a total of 2 inches of rain in about 45 minutes. |
| June 2013 | Thunderstorm Wind | Circle | - | Public reported a 6 to 8 inch diameter tree branch was broken off a large tree in the town of circle. |
| July 2013 | Thunderstorm Wind | Circle | - | Public reported a 78 mph wind gust. |
| July 2013 | Flash Flood | Circle | - | McCone County dispatch office reported flash flooding from strong thunderstorms. Water quickly flowing down the street and up over the sidewalks, approaching the doorways. |
| July 2013 | Thunderstorm Wind | Circle | - | Public reported that some metal fencing was damaged. |
| March 2011 | Flood | Circle | - | Small creeks and streams as well as the Redwater River were out of their banks. |
| July 2011 | Thunderstorm Wind | Circle | - | Spotter reported 60 mph winds. |
| May 2011 | Flood | Circle | - | Many gravel roads became impassible due to the extremely wet conditions. |
| May 2010 | Hail | Circle | - | Spotter reported penny size hail. |
| July 2010 | Thunderstorm Wind | Circle | - | Small tree branches breaking out of trees in town. |
| July 2010 | Thunderstorm Wind | Circle | - | One inch diameter tree limbs broken off. Larger dead tree limbs of 6 to 8 inches broken off. |
| July 2010 | Hail | Circle | - | Hail caused some crop damage. |
| July 2010 | Hail | Circle | - | Hail of up to 1.00 was reported. |
| June 2010 | Heavy Rain | Circle | - | Spotter reported heavy rain of an inch in about 40 minutes about 630 to 700 pm MST followed by 1.8 inches the remainder of the night. Two tenths of an inch fell the next day giving a total of three inches. Ponding of water occurred in the adjacent fields. |
| July 2009 | Heavy Rain | Circle | - | A farmer reported 1.5 to 2 inches of rain fell in various gauges around the farm that caused some minor flooding across gravel roads and low lying fields. |
| July 2009 | Thunderstorm Wind | Circle | - | Large branches broken in trees. |
| August 2009 | Thunderstorm Wind | Circle | - | Pea size hail also was observed. |
| July 2009 | Hail | Circle | - | Golfball-sized hail destroyed winter and spring wheat fields. Damage estimates were not yet available at publication time but will be added when they are ready. |
| August 2009 | Hail | Circle | - | Heavy rain also was reported. |
| August 2009 | Hail | Circle | - | Five minutes of hail with up to golfball-size. Strong winds also accompanied the storm. |
| July 2008 | Hail | Circle | - | Rainfall was measured at 0.64 inches. |
| July 2007 | Thunderstorm Wind | Circle | - | The wind was accompanied by pea sized hail. |
| August 2007 | Thunderstorm Wind | Circle | - | This report was taken from the Cow Creek DOT site. |
| May 2006 | Flash Flood | Circle | - | 2 feet of water running over Highway 200. The highway was closed from mile marker 262 to 263. |
| June 2005 | Flash Flood | Circle | - | 6-8 inches of rain fell over Dinnwitte Creek and into Horse Creek from 5 pm through 7 pm. The creek went from dry to 150 feet wide. A family and grain truck driver had to be evacuated. |
| June 2002 | Thunderstorm Wind | Circle | - | 60 mph wind gust reported by spotter 18 miles southeast of Fort Peck. |
| August 2002 | Thunderstorm Wind | Circle | - | 80 mph wind reported by spotter 8 miles north of Circle. |