Cities with Greatest Rise in Barometric Pressure

The following list ranks the biggest increases in barometric pressure today observed amongst our tracked cities. This is determined by finding the widest range between the highest and lowest pressures during the 24-hour period starting and ending at midnight, UTC−08:00 (Pacific Standard Time) in each city and choosing the cities where the time of the lowest pressure occurs before the time of the highest pressure.

Because each reading represents a 24-hour window of an hourly weather forecast, from 8 am yesterday through 8 am today (local time), it is possible that the entirety of the pressure range is not captured in the data. In this case, the green inverted triangle () indicates that the lowest pressure observed during this period was at the start, meaning that the pressure had likely risen from a lower low. Conversely, the red triangle () indicates that the highest pressure observed during this period is at the end, meaning that the pressure will likely rise beyond the upper end of the range observed. Therefore, green and/or red triangles indicate that the total rise is likely to be greater than the amount displayed.

#CityIncreaseLow TimeHigh TimeRate
1Colorado Springs, Colorado0.75 inHg8 am yesterday7 am0.033 inHg/hr
2Rapid City, South Dakota0.75 inHg8 am yesterday7 am0.033 inHg/hr
3Bismarck, North Dakota0.71 inHg8 am yesterday7 am0.031 inHg/hr
4Denver, Colorado0.7 inHg8 am yesterday7 am0.030 inHg/hr
5Cheyenne, Wyoming0.62 inHg8 am yesterday7 am0.027 inHg/hr
6Sioux Falls, South Dakota0.57 inHg8 am yesterday7 am0.025 inHg/hr
7Winnipeg, Canada0.48 inHg1 pm yesterday7 am0.027 inHg/hr
8Albuquerque, New Mexico0.4 inHg12 am7 am0.057 inHg/hr
9Omaha, Nebraska0.39 inHg9 am yesterday7 am0.018 inHg/hr
10Minneapolis, Minnesota0.37 inHg9 am yesterday7 am0.017 inHg/hr
11Tucson, Arizona0.35 inHg12 am7 am0.050 inHg/hr
12Johannesburg, South Africa0.34 inHg1 pm yesterday6 am0.020 inHg/hr
13Ho Chi Minh City, Vietnam0.34 inHg9 am yesterday3 pm yesterday0.057 inHg/hr
14Addis Ababa, Ethiopia0.33 inHg1 pm yesterday5 am0.021 inHg/hr
15Perth, Australia0.33 inHg8 am yesterday2 am0.018 inHg/hr
16Regina, Canada0.32 inHg8 am yesterday7 am0.014 inHg/hr
17Monterrey, Mexico0.32 inHg11 pm yesterday5 am0.053 inHg/hr
18Lubbock, Texas0.32 inHg8 am yesterday7 am0.014 inHg/hr
19Bangkok, Thailand0.32 inHg9 am yesterday2 am0.019 inHg/hr
20Dar es Salaam, Tanzania0.31 inHg1 pm yesterday7 am0.017 inHg/hr
= rise began before recorded 24-hour period (8 am yesterday)
= rise continues beyond recorded 24-hour period (8 am today)

The change and rate of change of barometric pressure is perhaps more important than the actual numerical value of pressure. This is why many digital barometric pressure displays show a numerical pressure reading accompanied by an indication of whether the pressure has been “rising” or “falling”. To weather forecasters, increasing barometric pressure is a signal of the arrival of a high-pressure system, which is generally associated with clear skies, calm winds, and lower humidity levels.

To folks who experience arthritis, migraines, or other physical conditions that are sensitive to pressure changes, rising pressure typically feels better than falling pressure, though changes in pressure affect people differently, and stable pressure is generally preferred to larger or more rapid changes in pressure.