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 | 05 | 29 | 19 | 1525 | 571 | 2205 | 1874 | 2238 | 2562 | 2627 | 33 | 22 | 35 | 29 | 22 | 35 | 36 | 44 | 2299 | 16157 |
| 2025 | 05 | 29 | 18 | 1522 | 572 | 2263 | 1977 | 2208 | 2269 | 2781 | 27 | 24 | 36 | 29 | 27 | 32 | 42 | 39 | 2295 | 16143 |
| 2025 | 05 | 29 | 17 | 1521 | 572 | 1682 | 2052 | 2393 | 3093 | 2266 | 35 | 19 | 35 | 31 | 27 | 25 | 36 | 41 | 2302 | 16130 |
| 2025 | 05 | 29 | 16 | 1524 | 572 | 2240 | 2034 | 1834 | 2793 | 2581 | 26 | 16 | 39 | 30 | 21 | 34 | 43 | 49 | 2290 | 16126 |
| 2025 | 05 | 29 | 15 | 1523 | 571 | 2155 | 2019 | 2684 | 1972 | 2652 | 30 | 25 | 36 | 21 | 28 | 26 | 37 | 45 | 2286 | 16110 |
| 2025 | 05 | 29 | 14 | 1524 | 572 | 2555 | 2072 | 2105 | 2230 | 2503 | 29 | 26 | 41 | 24 | 21 | 36 | 36 | 43 | 2277 | 16094 |
| 2025 | 05 | 29 | 13 | 1525 | 571 | 1841 | 2399 | 2034 | 2570 | 2611 | 27 | 23 | 28 | 31 | 30 | 24 | 40 | 44 | 2279 | 16077 |
| 2025 | 05 | 29 | 12 | 1523 | 572 | 2026 | 1695 | 2575 | 2740 | 2416 | 25 | 32 | 33 | 27 | 26 | 34 | 37 | 42 | 2267 | 16070 |
| 2025 | 05 | 29 | 11 | 1524 | 572 | 1972 | 1797 | 1960 | 2743 | 2969 | 37 | 31 | 35 | 30 | 22 | 27 | 32 | 48 | 2252 | 16051 |
| 2025 | 05 | 29 | 10 | 1520 | 572 | 2126 | 1683 | 2590 | 2386 | 2656 | 29 | 28 | 34 | 27 | 21 | 39 | 40 | 40 | 2249 | 16040 |
| 2025 | 05 | 29 | 09 | 1521 | 571 | 1940 | 1490 | 2234 | 2244 | 3530 | 30 | 34 | 23 | 33 | 21 | 30 | 36 | 44 | 2247 | 16028 |
| 2025 | 05 | 29 | 08 | 1523 | 570 | 2121 | 1969 | 2241 | 2157 | 2936 | 34 | 28 | 43 | 19 | 30 | 28 | 35 | 37 | 2239 | 16010 |
| 2025 | 05 | 29 | 07 | 1524 | 567 | 2199 | 2169 | 2336 | 2392 | 2316 | 20 | 26 | 35 | 26 | 28 | 32 | 33 | 41 | 2244 | 15988 |
| 2025 | 05 | 29 | 06 | 1524 | 568 | 2750 | 2223 | 2048 | 2175 | 2203 | 24 | 24 | 27 | 40 | 25 | 31 | 43 | 37 | 2225 | 15967 |
| 2025 | 05 | 29 | 05 | 1523 | 567 | 1704 | 1675 | 2912 | 3157 | 1939 | 29 | 23 | 39 | 26 | 24 | 26 | 39 | 44 | 2215 | 15942 |
| 2025 | 05 | 29 | 04 | 1522 | 567 | 2500 | 1882 | 1914 | 1849 | 3236 | 22 | 28 | 43 | 22 | 26 | 27 | 44 | 37 | 2192 | 15911 |
| 2025 | 05 | 29 | 03 | 1520 | 568 | 2119 | 1721 | 2237 | 2498 | 2795 | 40 | 19 | 28 | 31 | 29 | 28 | 25 | 53 | 2179 | 15890 |
| 2025 | 05 | 29 | 02 | 1522 | 567 | 1704 | 1998 | 2155 | 2544 | 2940 | 27 | 31 | 35 | 27 | 22 | 24 | 38 | 43 | 2156 | 15833 |
| 2025 | 05 | 29 | 01 | 1520 | 567 | 2360 | 1608 | 2207 | 2705 | 2435 | 26 | 30 | 32 | 33 | 34 | 22 | 27 | 42 | 2133 | 15781 |
| 2025 | 05 | 29 | 00 | 1522 | 573 | 2180 | 1757 | 2590 | 2731 | 2294 | 29 | 28 | 41 | 26 | 27 | 29 | 34 | 39 | 2318 | 16218 |
| 2025 | 05 | 28 | 23 | 1523 | 572 | 1938 | 1798 | 2685 | 2144 | 2983 | 32 | 27 | 33 | 27 | 22 | 26 | 45 | 50 | 2307 | 16212 |
| 2025 | 05 | 28 | 22 | 1523 | 573 | 2518 | 1808 | 2415 | 2081 | 2713 | 32 | 20 | 36 | 41 | 14 | 29 | 42 | 41 | 2313 | 16199 |
| 2025 | 05 | 28 | 21 | 1523 | 574 | 2607 | 1827 | 2666 | 2094 | 2341 | 21 | 38 | 41 | 24 | 23 | 40 | 32 | 42 | 2302 | 16195 |
| 2025 | 05 | 28 | 20 | 1521 | 574 | 2425 | 1925 | 2419 | 2172 | 2590 | 34 | 34 | 36 | 27 | 28 | 25 | 38 | 33 | 2308 | 16189 |
| 2025 | 05 | 28 | 19 | 1522 | 574 | 1875 | 1920 | 2700 | 2334 | 2695 | 38 | 24 | 32 | 31 | 24 | 21 | 43 | 44 | 2302 | 16179 |
| 2025 | 05 | 28 | 18 | 1523 | 574 | 2158 | 1744 | 2425 | 2002 | 3190 | 31 | 18 | 34 | 30 | 21 | 37 | 46 | 38 | 2297 | 16168 |
| 2025 | 05 | 28 | 17 | 1522 | 573 | 2369 | 1814 | 2097 | 2687 | 2549 | 24 | 19 | 38 | 25 | 31 | 29 | 39 | 45 | 2299 | 16160 |
| 2025 | 05 | 28 | 16 | 1526 | 572 | 2768 | 2081 | 1774 | 2719 | 2163 | 16 | 38 | 40 | 20 | 25 | 26 | 28 | 51 | 2300 | 16147 |
| 2025 | 05 | 28 | 15 | 1524 | 570 | 2143 | 1814 | 2572 | 2845 | 2126 | 29 | 29 | 37 | 22 | 29 | 30 | 39 | 40 | 2286 | 16135 |
| 2025 | 05 | 28 | 14 | 1523 | 571 | 1972 | 2207 | 2487 | 2251 | 2574 | 23 | 30 | 35 | 43 | 24 | 25 | 31 | 48 | 2275 | 16119 |
| 2025 | 05 | 28 | 13 | 1522 | 571 | 1871 | 1891 | 2354 | 3044 | 2323 | 26 | 27 | 46 | 26 | 24 | 36 | 34 | 39 | 2265 | 16099 |
| 2025 | 05 | 28 | 12 | 1522 | 570 | 2413 | 1996 | 2455 | 2361 | 2248 | 26 | 31 | 42 | 23 | 22 | 30 | 33 | 44 | 2261 | 16077 |
| 2025 | 05 | 28 | 11 | 1523 | 570 | 2801 | 2014 | 2493 | 1910 | 2244 | 25 | 23 | 38 | 25 | 26 | 37 | 31 | 42 | 2259 | 16061 |
| 2025 | 05 | 28 | 10 | 1520 | 570 | 2372 | 1752 | 1889 | 3035 | 2404 | 22 | 30 | 46 | 29 | 26 | 33 | 32 | 39 | 2248 | 16047 |
| 2025 | 05 | 28 | 09 | 1522 | 569 | 2225 | 1627 | 3158 | 2331 | 2101 | 28 | 29 | 40 | 25 | 19 | 40 | 42 | 46 | 2234 | 16036 |
| 2025 | 05 | 28 | 08 | 1524 | 569 | 2966 | 1772 | 2330 | 1917 | 2454 | 23 | 18 | 38 | 35 | 34 | 34 | 34 | 47 | 2226 | 16021 |
| 2025 | 05 | 28 | 07 | 1524 | 570 | 2017 | 1710 | 2588 | 2401 | 2714 | 18 | 21 | 44 | 28 | 25 | 36 | 40 | 42 | 2226 | 16004 |
| 2025 | 05 | 28 | 06 | 1523 | 570 | 1587 | 2002 | 2582 | 2801 | 2440 | 34 | 24 | 42 | 30 | 17 | 36 | 38 | 43 | 2205 | 15974 |
| 2025 | 05 | 28 | 05 | 1524 | 570 | 2829 | 1911 | 1702 | 2337 | 2619 | 31 | 31 | 41 | 31 | 14 | 27 | 37 | 50 | 2197 | 15951 |
| 2025 | 05 | 28 | 04 | 1520 | 570 | 1841 | 1959 | 2627 | 2535 | 2432 | 23 | 29 | 37 | 37 | 28 | 32 | 29 | 40 | 2183 | 15922 |
| 2025 | 05 | 28 | 03 | 1522 | 570 | 2330 | 1959 | 2058 | 2274 | 2764 | 26 | 23 | 45 | 26 | 28 | 26 | 42 | 36 | 2166 | 15895 |
| 2025 | 05 | 28 | 02 | 1523 | 570 | 2228 | 1829 | 2314 | 2211 | 2783 | 28 | 26 | 41 | 22 | 24 | 35 | 31 | 46 | 2149 | 15860 |
| 2025 | 05 | 28 | 01 | 1521 | 567 | 2668 | 1683 | 2023 | 2485 | 2463 | 34 | 23 | 37 | 31 | 24 | 21 | 38 | 47 | 2112 | 15777 |
| 2025 | 05 | 28 | 00 | 1526 | 572 | 2215 | 1891 | 2525 | 2553 | 2357 | 30 | 28 | 35 | 30 | 30 | 35 | 36 | 38 | 2295 | 16196 |
| 2025 | 05 | 27 | 23 | 1525 | 572 | 2285 | 1871 | 2984 | 2260 | 2138 | 27 | 25 | 36 | 28 | 36 | 31 | 32 | 37 | 2303 | 16190 |
| 2025 | 05 | 27 | 22 | 1527 | 572 | 1784 | 1914 | 2785 | 2947 | 2099 | 21 | 25 | 39 | 38 | 26 | 33 | 40 | 44 | 2289 | 16183 |
| 2025 | 05 | 27 | 21 | 1526 | 572 | 2238 | 1715 | 2420 | 2578 | 2579 | 26 | 28 | 38 | 33 | 21 | 28 | 35 | 52 | 2287 | 16176 |
| 2025 | 05 | 27 | 20 | 1522 | 572 | 2252 | 1998 | 2185 | 2182 | 2906 | 41 | 30 | 37 | 34 | 24 | 29 | 33 | 42 | 2277 | 16164 |