Cobalt Posted Tuesday at 06:50 PM Share Posted Tuesday at 06:50 PM This is a thread dedicated to discussing and analyzing the temperature data available for Yellow Medicine County, MN (Population 9,477). it's warming. Link to comment Share on other sites More sharing options...
Cobalt Posted Tuesday at 07:24 PM Author Share Posted Tuesday at 07:24 PM Yellow Medicine County is currently having its 7th warmest start to the year on record (1895-2026). Link to comment Share on other sites More sharing options...
Cobalt Posted Wednesday at 07:57 PM Author Share Posted Wednesday at 07:57 PM Sep 2026 data is still yet to come in for Yellow Medicine County, Minnesota (Population 9,477), but the trend from past Septembers indicates that the month is among the fastest warming. Increases in both high and low temperatures are to blame. Link to comment Share on other sites More sharing options...
ChescoWx Posted Friday at 08:05 PM Share Posted Friday at 08:05 PM The above data is like most other places sufferring from NCEI altered temperatures which as is usually the case warms the past and chills the current. Below is actual vs altered data for beautiful Yellow Medicine County!! The graph shows 1895–2025: the NCEI adjusted line is in red and the raw station data in blue, each with its trend line. The trend is +0.19°F/decade for NCEI and +0.12°F/decade for raw, so NCEI shows about 60% more warming than the raw data - call me stunned!! Link to comment Share on other sites More sharing options...
Cobalt Posted Friday at 08:08 PM Author Share Posted Friday at 08:08 PM as per this data, Yellow Medicine County, MN is warming at a rate of between 0.12F and 0.19F per decade. Link to comment Share on other sites More sharing options...
Cobalt Posted Friday at 08:08 PM Author Share Posted Friday at 08:08 PM (Population 9,477) Link to comment Share on other sites More sharing options...
ChescoWx Posted Friday at 08:11 PM Share Posted Friday at 08:11 PM 1 minute ago, Cobalt said: as per this data, Yellow Medicine County, MN is warming at a rate of between 0.12F and 0.19F per decade. the altered data adds 60% more warming than the actual data..... Link to comment Share on other sites More sharing options...
ChescoWx Posted Friday at 08:12 PM Share Posted Friday at 08:12 PM On 10/21/2026 at 3:57 PM, Cobalt said: Sep 2026 data is still yet to come in for Yellow Medicine County, Minnesota (Population 9,477), but the trend from past Septembers indicates that the month is among the fastest warming. Increases in both high and low temperatures are to blame. Nope! The raw September trend for 1895–2025 is +0.13°F per decade, and it is not statistically significant (p ≈ 0.10; 95% range −0.03 to +0.29°F per decade). Series °F/decade 95% range p Raw September, 1895–2025 +0.13 ±0.16 0.10, not significant Link to comment Share on other sites More sharing options...
Cobalt Posted Friday at 08:14 PM Author Share Posted Friday at 08:14 PM On 10/21/2026 at 3:57 PM, Cobalt said: Sep 2026 data is still yet to come in for Yellow Medicine County, Minnesota (Population 9,477), but the trend from past Septembers indicates that the month is among the fastest warming. Increases in both high and low temperatures are to blame. September, 2026 data has come in for Yellow Medicine County, Minnesota. With an average temperature of 65.3F, the county (population 9,477) experienced its 12th warmest September on record, but the coldest since 2022. 1 Link to comment Share on other sites More sharing options...
ChescoWx Posted Friday at 09:16 PM Share Posted Friday at 09:16 PM 1 hour ago, Cobalt said: September, 2026 data has come in for Yellow Medicine County, Minnesota. With an average temperature of 65.3F, the county (population 9,477) experienced its 12th warmest September on record, but the coldest since 2022. Again you are using altered post hoc data that is not the actual raw historical data.... Link to comment Share on other sites More sharing options...
Cobalt Posted Friday at 10:03 PM Author Share Posted Friday at 10:03 PM 1 hour ago, Cobalt said: September, 2026 data has come in for Yellow Medicine County, Minnesota. With an average temperature of 65.3F, the county (population 9,477) experienced its 12th warmest September on record, but the coldest since 2022. Yellow Medicine County, Minnesota (Population 9,477) has been on a recent streak of warm Septembers. 2026 - 65.3F (12th warmest) 2025 - 65.6F (9th warmest) 2024 - 67.7F (warmest) 2023 - 66.3F (5th warmest) 2022 - 64.0F (22nd warmest) 2021 - 64.8F (14th warmest) The most recent September to fall below the 20th century average was September 2020, at 60.6F (62nd coolest) 1 Link to comment Share on other sites More sharing options...
ChescoWx Posted 23 hours ago Share Posted 23 hours ago 16 hours ago, Cobalt said: Yellow Medicine County, Minnesota (Population 9,477) has been on a recent streak of warm Septembers. 2026 - 65.3F (12th warmest) 2025 - 65.6F (9th warmest) 2024 - 67.7F (warmest) 2023 - 66.3F (5th warmest) 2022 - 64.0F (22nd warmest) 2021 - 64.8F (14th warmest) The most recent September to fall below the 20th century average was September 2020, at 60.6F (62nd coolest) Still using altered not actual data with those figures....the facts are 6 of the top 10 warmest Septembers all occurred prior to 2000.With 3 of the top 6 warmest all before 1935! Link to comment Share on other sites More sharing options...
Cobalt Posted 22 hours ago Author Share Posted 22 hours ago 10 of the 20 warmest Septembers in Yellow Medicine County, MN (Population 9,477) have occurred within the past 30 years. This means that the other 10 occurred over the 100 years prior. Link to comment Share on other sites More sharing options...
Brewbeer Posted 22 hours ago Share Posted 22 hours ago 19 hours ago, Cobalt said: September, 2026 data has come in for Yellow Medicine County, Minnesota. With an average temperature of 65.3F, the county (population 9,477) experienced its 12th warmest September on record, but the coldest since 2022. the spike in rate of warming in the last 10-15 years is really impressive 1 Link to comment Share on other sites More sharing options...
donsutherland1 Posted 1 hour ago Share Posted 1 hour ago On 10/20/2026 at 2:50 PM, Cobalt said: This is a thread dedicated to discussing and analyzing the temperature data available for Yellow Medicine County, MN (Population 9,477). it's warming. At Granite Falls, MN, county capital for Yellow Medicine County, 84% of daily record high temperatures were set or tied since 2000 and 43% were set or tied since 2020. In addition, 83% of monthly record highs were set or tied since 2000 and 50% of monthly record highs were set or tied since 2020. Climate records go back to January 1893. The concentration of record highs in recent decades is substantial and consistent with a warming climate, as documented in the NCEI data. Link to comment Share on other sites More sharing options...
ChescoWx Posted 28 minutes ago Share Posted 28 minutes ago 44 minutes ago, donsutherland1 said: At Granite Falls, MN, county capital for Yellow Medicine County, 84% of daily record high temperatures were set or tied since 2000 and 43% were set or tied since 2020. In addition, 83% of monthly record highs were set or tied since 2000 and 50% of monthly record highs were set or tied since 2020. Climate records go back to January 1893. The concentration of record highs in recent decades is substantial and consistent with a warming climate, as documented in the NCEI data. Sorry Don but the concentration of daily highs were by far occurring before 2000 across all locations! Most of Yellow Medicine’s daily record highs were set before 2000: about three-quarters before 2000 and about 90% before 2020. This counts all 366 calendar dates in the raw station data through 2025. Before 2000 Before 2020 Canby (in county, 1916–2025) 76% 91% Area, all 6 stations (1893–2025) 73% 89% Area without Granite Falls 75% 91% Canby’s records show about 75% of its years are before 2000, and 76% of its records were set then. About 94% of its years are before 2020, and 91% of its records were set then. That points to no clear trend toward more record highs. By decade, the 1930s dominate: they hold about 70 of the 366 area daily records, nearly twice any other decade. Canby alone has 72 from the 1930s, against 40 from the 1980s and 32 from the 2020s. Don Granite Falls exaggerates records as in fact that station only has temperatures for 1893–1897 and then not again until 2007. These are the days with a high temperature reported each year: Years Temperature Precipitation 1893–1896 Nearly complete (317–355 days a year) Yes 1897 61 days, then it stops Partial 1898–1947 None None 1948–1951 None Yes 1991–2006 None Yes, with gaps 2007–2025 Complete Yes Link to comment Share on other sites More sharing options...
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