Barometric Pressure Reports (inHg)

Report for Year 2026

Data last updated 8/5/2026 4:55 PM.

Day	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1	30.07	30.26	30.50	30.08	30.09	30.03	29.89	29.85	---	---	---	---
2	30.07	30.25	30.34	29.73	30.13	30.26	29.96	29.93	---	---	---	---
3	30.18	30.37	30.17	29.97	29.83	30.22	30.00	29.96	---	---	---	---
4	30.07	30.50	30.15	30.05	29.62	30.01	29.98	30.01	---	---	---	---
5	29.79	30.03	30.02	30.30	29.86	29.83	30.01	30.05	---	---	---	---
6	29.77	30.09	29.81	30.40	30.05	29.84	30.06	---	---	---	---	---
7	29.86	30.38	29.94	30.42	29.93	29.85	30.09	---	---	---	---	---
8	29.57	30.20	29.84	30.03	29.79	29.86	29.99	---	---	---	---	---
9	30.06	30.04	29.68	30.15	29.79	29.87	29.88	---	---	---	---	---
10	30.21	30.10	29.74	30.35	30.13	29.66	29.91	---	---	---	---	---
11	30.47	30.36	30.08	30.26	30.18	29.71	30.07	---	---	---	---	---
12	30.18	30.25	30.10	29.83	29.97	29.96	30.20	---	---	---	---	---
13	29.81	30.14	29.92	29.77	30.09	29.90	30.22	---	---	---	---	---
14	30.13	30.03	30.03	29.68	29.98	30.02	30.19	---	---	---	---	---
15	30.00	30.00	29.59	29.71	29.74	29.97	30.11	---	---	---	---	---
16	29.76	29.91	30.10	29.82	29.80	29.74	30.05	---	---	---	---	---
17	30.19	29.64	30.25	29.71	29.71	29.47	30.00	---	---	---	---	---
18	30.13	29.55	30.04	30.06	29.78	29.81	29.94	---	---	---	---	---
19	30.45	29.63	30.04	30.25	30.04	30.01	29.99	---	---	---	---	---
20	30.35	29.92	29.91	30.23	30.30	30.02	29.84	---	---	---	---	---
21	30.11	30.36	29.77	29.91	30.22	29.89	29.90	---	---	---	---	---
22	30.39	30.64	29.90	29.90	30.02	30.08	30.11	---	---	---	---	---
23	30.87	30.62	30.44	29.69	29.98	30.17	30.19	---	---	---	---	---
24	30.74	29.80	30.26	29.82	30.05	30.01	30.09	---	---	---	---	---
25	30.45	29.86	29.92	29.95	30.04	29.99	29.96	---	---	---	---	---
26	30.39	29.94	29.83	29.91	29.99	29.99	29.86	---	---	---	---	---
27	30.37	29.92	30.56	29.64	29.99	29.94	29.74	---	---	---	---	---
28	30.41	30.23	30.53	30.01	30.07	29.76	29.86	---	---	---	---	---
29	30.46		30.08	30.11	29.99	29.76	29.98	---	---	---	---	---
30	30.62		29.79	30.07	29.95	29.84	30.02	---	---	---	---	---
31	30.66		29.84		29.96		29.77	---		---		---
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
High	30.87	30.64	30.56	30.42	30.30	30.26	30.22	30.05	---	---	---	---
Average	30.21	30.11	30.04	29.99	29.97	29.92	30.00	29.96	---	---	---	---
Low	29.57	29.55	29.59	29.64	29.62	29.47	29.74	29.85	---	---	---	---

Color Key
< 29.40	29.40 - 29.50	29.50 - 29.60	29.60 - 29.70	29.70 - 29.80	29.80 - 29.90	29.90 - 30.00	30.00 - 30.10	30.10 - 30.20	30.20 - 30.30	30.30 - 30.40	30.40 - 30.50	30.50>

© 2026, GrinnellWeather.com | Weather-Display (10.37S-(b152)) | Valid XHTML 1.0 | Valid CSS

Never base important decisions on this or any weather information obtained from the Internet.