This shows the number of weather stations (both ham and non-ham) sending directly to APRS-IS servers. The information for packets is here.
| Year | Mon | Day | Hour | AMB1 | AMB2 | CWOP-3 | CWOP-4 | CWOP-5 | CWOP-6 | CWOP-7 | 5th | 1st | 4th | 2nd | 6th | 9th | 8th | 3rd | other | Total |
| 2025 | 09 | 06 | 07 | 1549 | 588 | 2112 | 1954 | 2733 | 1906 | 2595 | 21 | 25 | 34 | 36 | 23 | 30 | 28 | 45 | 2233 | 15912 |
| 2025 | 09 | 06 | 06 | 1548 | 588 | 1814 | 1992 | 2481 | 1840 | 3163 | 24 | 25 | 27 | 36 | 19 | 37 | 38 | 35 | 2223 | 15890 |
| 2025 | 09 | 06 | 05 | 1550 | 588 | 2093 | 1922 | 2114 | 2177 | 2972 | 29 | 27 | 24 | 20 | 26 | 40 | 30 | 39 | 2217 | 15868 |
| 2025 | 09 | 06 | 04 | 1551 | 587 | 1883 | 1756 | 2794 | 1833 | 2999 | 15 | 28 | 32 | 24 | 27 | 27 | 24 | 59 | 2210 | 15849 |
| 2025 | 09 | 06 | 03 | 1551 | 586 | 2229 | 2067 | 2274 | 2238 | 2453 | 20 | 24 | 34 | 27 | 22 | 33 | 35 | 46 | 2190 | 15829 |
| 2025 | 09 | 06 | 02 | 1551 | 586 | 2620 | 1610 | 2387 | 2357 | 2275 | 23 | 14 | 24 | 26 | 22 | 39 | 41 | 48 | 2179 | 15802 |
| 2025 | 09 | 06 | 01 | 1550 | 586 | 2329 | 1507 | 2233 | 2441 | 2709 | 28 | 27 | 32 | 22 | 24 | 35 | 21 | 48 | 2151 | 15743 |
| 2025 | 09 | 06 | 00 | 1557 | 589 | 1996 | 2214 | 2061 | 2461 | 2687 | 22 | 22 | 29 | 25 | 37 | 42 | 24 | 37 | 2355 | 16158 |
| 2025 | 09 | 05 | 23 | 1553 | 589 | 2053 | 2060 | 2346 | 2256 | 2699 | 28 | 25 | 28 | 30 | 23 | 41 | 29 | 43 | 2344 | 16147 |
| 2025 | 09 | 05 | 22 | 1555 | 588 | 2373 | 1859 | 2094 | 2182 | 2904 | 34 | 28 | 33 | 35 | 20 | 31 | 30 | 33 | 2342 | 16141 |
| 2025 | 09 | 05 | 21 | 1554 | 588 | 2543 | 2038 | 2126 | 2461 | 2236 | 29 | 22 | 29 | 26 | 37 | 31 | 36 | 37 | 2340 | 16133 |
| 2025 | 09 | 05 | 20 | 1553 | 588 | 2336 | 1752 | 2386 | 2717 | 2210 | 19 | 24 | 33 | 34 | 15 | 28 | 39 | 52 | 2341 | 16127 |
| 2025 | 09 | 05 | 19 | 1552 | 587 | 2078 | 1676 | 2522 | 2902 | 2221 | 28 | 21 | 26 | 30 | 23 | 35 | 32 | 45 | 2341 | 16119 |
| 2025 | 09 | 05 | 18 | 1554 | 585 | 2269 | 2447 | 2200 | 2208 | 2272 | 29 | 27 | 31 | 27 | 31 | 31 | 30 | 48 | 2320 | 16109 |
| 2025 | 09 | 05 | 17 | 1552 | 586 | 2552 | 1916 | 2024 | 2470 | 2429 | 14 | 41 | 26 | 29 | 28 | 37 | 30 | 36 | 2331 | 16101 |
| 2025 | 09 | 05 | 16 | 1553 | 587 | 2267 | 1954 | 2260 | 2493 | 2407 | 22 | 24 | 41 | 37 | 21 | 38 | 30 | 35 | 2323 | 16092 |
| 2025 | 09 | 05 | 15 | 1553 | 586 | 1804 | 2255 | 2672 | 1719 | 2923 | 21 | 22 | 32 | 34 | 25 | 41 | 27 | 39 | 2328 | 16081 |
| 2025 | 09 | 05 | 14 | 1553 | 586 | 1871 | 1805 | 2952 | 1969 | 2777 | 28 | 24 | 27 | 22 | 25 | 38 | 28 | 53 | 2309 | 16067 |
| 2025 | 09 | 05 | 13 | 1553 | 586 | 1968 | 1772 | 2414 | 2141 | 3071 | 24 | 20 | 25 | 26 | 24 | 46 | 34 | 33 | 2313 | 16050 |
| 2025 | 09 | 05 | 12 | 1552 | 585 | 2252 | 1748 | 2509 | 2086 | 2761 | 26 | 27 | 24 | 38 | 23 | 38 | 24 | 40 | 2302 | 16035 |
| 2025 | 09 | 05 | 11 | 1551 | 585 | 2320 | 1865 | 2295 | 2597 | 2277 | 18 | 35 | 29 | 31 | 20 | 28 | 36 | 45 | 2290 | 16022 |
| 2025 | 09 | 05 | 10 | 1552 | 584 | 2084 | 1703 | 2280 | 2344 | 2937 | 16 | 28 | 27 | 24 | 23 | 32 | 37 | 40 | 2296 | 16007 |
| 2025 | 09 | 05 | 09 | 1550 | 585 | 2183 | 1811 | 1973 | 2391 | 2984 | 30 | 24 | 32 | 22 | 31 | 34 | 30 | 34 | 2268 | 15982 |
| 2025 | 09 | 05 | 08 | 1551 | 584 | 2068 | 2057 | 2327 | 2174 | 2704 | 22 | 34 | 26 | 23 | 33 | 34 | 32 | 40 | 2254 | 15963 |
| 2025 | 09 | 05 | 07 | 1552 | 583 | 2055 | 1796 | 2160 | 3077 | 2239 | 29 | 27 | 28 | 30 | 28 | 28 | 32 | 37 | 2244 | 15945 |
| 2025 | 09 | 05 | 06 | 1553 | 583 | 1960 | 2105 | 1720 | 3263 | 2264 | 29 | 38 | 20 | 29 | 24 | 26 | 33 | 37 | 2232 | 15916 |
| 2025 | 09 | 05 | 05 | 1552 | 582 | 1840 | 2068 | 2451 | 2256 | 2689 | 22 | 31 | 35 | 27 | 27 | 33 | 36 | 33 | 2204 | 15886 |
| 2025 | 09 | 05 | 04 | 1553 | 581 | 2025 | 2047 | 1906 | 2390 | 2928 | 21 | 24 | 37 | 36 | 16 | 34 | 30 | 35 | 2199 | 15862 |
| 2025 | 09 | 05 | 03 | 1552 | 580 | 2448 | 1978 | 2317 | 2182 | 2362 | 19 | 31 | 26 | 36 | 18 | 34 | 31 | 32 | 2193 | 15839 |
| 2025 | 09 | 05 | 02 | 1552 | 580 | 2350 | 1727 | 2967 | 1877 | 2357 | 29 | 21 | 32 | 35 | 25 | 28 | 27 | 33 | 2167 | 15807 |
| 2025 | 09 | 05 | 01 | 1550 | 582 | 2194 | 2146 | 2058 | 2352 | 2498 | 21 | 28 | 25 | 40 | 18 | 28 | 24 | 39 | 2136 | 15739 |
| 2025 | 09 | 05 | 00 | 1557 | 590 | 2177 | 1717 | 2652 | 2064 | 2818 | 21 | 25 | 34 | 31 | 16 | 35 | 29 | 48 | 2409 | 16223 |
| 2025 | 09 | 04 | 23 | 1557 | 590 | 2308 | 1878 | 1862 | 2221 | 3146 | 33 | 24 | 30 | 27 | 19 | 30 | 33 | 46 | 2409 | 16213 |
| 2025 | 09 | 04 | 22 | 1557 | 590 | 2519 | 1796 | 1949 | 2191 | 2961 | 30 | 22 | 27 | 28 | 36 | 36 | 33 | 38 | 2392 | 16205 |
| 2025 | 09 | 04 | 21 | 1560 | 590 | 2028 | 1869 | 2437 | 2519 | 2554 | 33 | 31 | 26 | 34 | 26 | 29 | 27 | 39 | 2399 | 16201 |
| 2025 | 09 | 04 | 20 | 1558 | 589 | 2211 | 1900 | 2625 | 2357 | 2317 | 25 | 19 | 33 | 21 | 30 | 45 | 31 | 39 | 2390 | 16190 |
| 2025 | 09 | 04 | 19 | 1557 | 588 | 2234 | 2003 | 2293 | 2589 | 2283 | 25 | 17 | 36 | 23 | 25 | 43 | 32 | 35 | 2393 | 16176 |
| 2025 | 09 | 04 | 18 | 1555 | 588 | 1762 | 1800 | 2483 | 2054 | 3300 | 23 | 27 | 29 | 22 | 26 | 41 | 34 | 46 | 2373 | 16163 |
| 2025 | 09 | 04 | 17 | 1556 | 590 | 1912 | 2062 | 1973 | 2863 | 2583 | 28 | 22 | 28 | 26 | 32 | 36 | 24 | 37 | 2384 | 16156 |
| 2025 | 09 | 04 | 16 | 1558 | 590 | 1652 | 1599 | 3037 | 2130 | 2967 | 17 | 29 | 22 | 28 | 23 | 37 | 36 | 42 | 2376 | 16143 |
| 2025 | 09 | 04 | 15 | 1556 | 590 | 2381 | 1767 | 2232 | 2507 | 2493 | 24 | 23 | 19 | 38 | 31 | 37 | 29 | 41 | 2365 | 16133 |
| 2025 | 09 | 04 | 14 | 1557 | 590 | 2732 | 1491 | 2085 | 2300 | 2763 | 26 | 24 | 32 | 24 | 32 | 27 | 36 | 37 | 2366 | 16122 |
| 2025 | 09 | 04 | 13 | 1559 | 590 | 1903 | 1952 | 2139 | 2739 | 2632 | 23 | 32 | 28 | 28 | 30 | 32 | 36 | 32 | 2348 | 16103 |
| 2025 | 09 | 04 | 12 | 1557 | 588 | 1907 | 1869 | 1924 | 2730 | 2931 | 21 | 29 | 24 | 22 | 29 | 35 | 33 | 45 | 2343 | 16087 |
| 2025 | 09 | 04 | 11 | 1557 | 587 | 1752 | 1595 | 2263 | 2820 | 2917 | 24 | 25 | 34 | 25 | 15 | 40 | 29 | 44 | 2337 | 16064 |
| 2025 | 09 | 04 | 10 | 1557 | 588 | 2446 | 1790 | 2490 | 2181 | 2433 | 27 | 23 | 23 | 32 | 37 | 47 | 21 | 39 | 2316 | 16050 |
| 2025 | 09 | 04 | 09 | 1559 | 588 | 2468 | 2016 | 2018 | 2325 | 2503 | 25 | 28 | 30 | 32 | 23 | 29 | 27 | 50 | 2310 | 16031 |
| 2025 | 09 | 04 | 08 | 1557 | 586 | 2380 | 1900 | 1709 | 2325 | 3014 | 27 | 32 | 27 | 19 | 30 | 37 | 30 | 38 | 2301 | 16012 |