Almanac · 37 places · Official values through November 1, 2026
The Almanac
30 of these 37 places have nearly stopped setting record lows.
Each place has a page built from its own official daily weather record: yesterday in context, the year so far, the record book, and how its climate has changed.
Is the record book still setting record lows?
Daily record lows set since 2000 that still stand, compared with what chance alone would give. Hover or tap a place; click to open its page.
Orange far fewer than chance, and the gap is real
Light orange fewer, close to a real gap
Gray about what chance would give
Teal more record lows than chance
Data: NOAA official daily records via RCC-ACIS. State outlines: US Census Bureau.
Every place
Trends are per decade across each full record. Sort by any column.
How to read this
- Record lows since 2000: every calendar date has one record low. If the climate weren't changing, each year would have the same chance of holding it, so the years since 2000 would hold their fair share. Far fewer means the cold extremes have stopped coming.
- Is the gap real? We pick the same number of years at random from the place's record, 20,000 times, and see how often they hold as few record lows. Whole years are drawn, so a cold snap that set several records at once stays together. Orange means that happened less than 2.5% of the time.
- Nights and days: the trend in the yearly average low and high, in °F per decade, across every complete year. "Signal" means its 95% range clears zero.
- Volunteer stations are read once a day by local observers; official city records are the long records NOAA keeps for cities, often joining several sites over the years. Neither is adjusted for station moves or new instruments.